The correct answer is D. Amit asked him whether they were never to meet.
Amit is asking a question, so the correct answer must be a question. Option A is not a question, it is a statement. Option B is a question, but it is not the question that Amit is asking. Option C is not a question, it is a statement.
Amit is asking whether they are never to meet. This means that Amit is asking whether they will never meet. Option D is the only option that asks this question.