Must Be True — What Can You Prove?

The answer must be PROVEN by the stimulus. Not probably true. MUST be true.

Strategy:

1. No conclusion to find — treat stimulus as facts

2. Combine two or more facts to derive something new

3. Correct answer is usually conservative and narrow

Traps:

Too extreme: "All X are Y" — probably not supported

Outside scope: Introduces new concept

Reversed logic: If A then B does NOT mean if B then A

Safe answers: Hedged language like "some," "at least one," "not all" — these are easier to prove than absolute claims.

Reference:

Wikipedia: Inference

https://en.wikipedia.org/wiki/Inference