In Detecting analogies questions, the candidate is required to trace out hidden analogy or common characteristic among given words or to choose word which possesses the same characteristic as the given word.

Detect analogy

Petrol :Phosphorus : Cooking gas

A. They are fules.
B. They are highly inflammable.
C. They can`t be sold without permit.
D. India has to import them.
Answer: B . They are highly inflammable.

Justification: Justification is not available.