Which of the statements given below is/are correct?
(I) He has met him. Hasn't he?
(II) He got first division. Isn't it?
(III) He got first division. Didn't he?

The correct answer is Option B (Only (I) and (III) are correct).

Key Points:
• Rules for Question Tags:
• If the main sentence has an auxiliary verb, use the same in the tag (Positive sentence -> Negative tag). "He has met him" -> Tag: "hasn't he?" (Statement I is correct).
• If there is no auxiliary verb, use do/does/did based on the tense. "He got first division" is in simple past tense (got), so the auxiliary is 'did'. The tag should be "didn't he?".
• Statement II wrongly uses "Isn't it?". Statement III correctly uses "Didn't he?". Therefore, I and III are correct.
• Key Takeaway: Match the auxiliary verb of the sentence in the question tag. For simple past tense without an auxiliary, use 'did/didn't'.