Best Supported / Inference
What Makes These Hard
Every technique so far has given you a clear starting point: a keyword from the question stem, the first sentence of each paragraph, or the intro and conclusion. Best Supported questions give you nothing.
The stem is vague:
- "Which of the following is best supported by the passage?"
- "Which of the following can most reasonably be inferred?"
- "The passage most strongly suggests that..."
No keyword to scan for. No paragraph to target. You have to work from the answer options instead, checking each one against the passage. That takes longer and is less predictable.
These make up roughly 5% of VR questions - rare, but when they appear, they eat time. If you're behind on pace, they're the first to skip or guess on.
The Technique: Option Scan
Since the question stem doesn't point you anywhere, you scan the passage using keywords from the answer options instead. But you don't check all four blindly - you prioritise. Target 30-45 seconds (guess and move on if you're struggling after 45s):
- Read all four answer options.
- Prioritise which to check first:
- Take your chosen option's keywords and scan the passage for them.
- Found support? Select it. No support? Try the next option.
The contradictory-pair shortcut is the biggest time saver. If option A says the drug is safe and option C says the drug is dangerous, one of them is almost certainly correct. Check those two first and ignore the rest.
Inference Rules
A valid inference must be very close to what the passage says - no huge logical leaps.
| Valid inferences | Invalid inferences |
|---|---|
| Paraphrasing specific details in general terms | Generalising beyond the passage's scope (e.g. "middle-aged" → "elderly") |
| Basic maths (25M to 2.5M = 90% decrease) | Applying outside knowledge |
| Obvious implications ("drought" from "climatic fluctuation") | Requiring multiple logical jumps |
| Common-sense definitions ("bees can fly") | Assuming causes or effects not stated |
The exam rewards caution, not creativity. The best-supported answer is always the one that stays closest to the text.
Worked Example: Blood Pressure Drug Trial
Passage excerpt:
"The new drug reduced blood pressure by an average of 15% in patients aged 40-60 during the six-month trial. No significant side effects were observed in this group."
Question: "Which of the following is best supported by the passage?"
| Option | Check against passage |
|---|---|
| A) The drug is safe for all age groups | Passage only tested ages 40-60. "All age groups" goes beyond the evidence. -> Not supported |
| B) The drug will replace current blood pressure medications | Passage says nothing about replacing other drugs. -> Not supported |
| C) The drug showed promise for middle-aged adults with high blood pressure | 40-60 = middle-aged. Reduced blood pressure + no side effects = "showed promise." -> Supported |
| D) The drug works better than existing treatments | No comparison with other treatments in the passage. -> Not supported |
Answer: C
A is too broad (all age groups vs 40-60). B predicts the future. D makes a comparison the passage never makes. C sticks close to what the passage actually says, just rephrased in general terms.
The "Least Wrong" Principle
With inference questions, you're often not looking for the one that's definitely right - you're looking for the one that's least wrong.
Three options will overshoot: too broad, too certain, or not in the passage. One will stay close to the text. Pick that one, even if it feels underwhelming. The correct answer to a "best supported" question is almost always the boring, cautious option - not the dramatic one.
Reject any option that:
- Goes beyond the passage's scope
- Predicts the future
- Makes a comparison the passage doesn't make
- Uses "all" or "always" when the passage is more limited
The option that survives = your answer.
Common Traps
Trap 1: The Plausible Overreach
Option sounds reasonable and you'd agree with it in real life - but the passage doesn't support it. "The drug is safe for all age groups" is a perfectly sensible thing to believe, but the passage only tested one age group. Stick to the text.
Trap 2: Strong Language
Watch for absolute words: "always," "never," "all," "none," "will." The passage almost never uses these, and if the option does, it's probably overreaching. The supported answer usually uses hedged language: "may," "suggests," "could," "some."
Trap 3: Confusing "True in Real Life" with "Supported by the Passage"
You might know from outside knowledge that option A is factually correct. Doesn't matter. The question asks what the passage supports. Your real-world knowledge is irrelevant.
Summary
| Element | Detail |
|---|---|
| Question format | "Best supported by the passage", "most reasonably inferred", "passage most strongly suggests" |
| Technique | Option Scan: read all options, prioritise contradictory pairs, scan passage for each option's keywords |
| Inference rules | Must be very close to the text - paraphrasing and basic maths are valid; logical leaps and outside knowledge are not |
| Least Wrong Principle | Pick the cautious, boring option that stays closest to the passage |
| Time target | 30-45 seconds (skip if behind on time) |
Next lesson: Except questions - where the logic inverts completely and you're looking for the one answer the passage does NOT support.