'Pull someone's leg' means
ATrip someone over
BPhysically pull a leg
CPush someone hard
DTease in a friendly way
Answer & Solution
Correct answer: D. Tease in a friendly way
1. Idiom: 'pulling the leg' = light-hearted teasing.
2. Literal sense is the trap.
3. Hence option A.
_Source: jkchrome.com SSC Idioms and Phrases PDF (Mistral OCR), section on common idioms_