The correct answer is: D. The examiner asked who was the first man to fly in space.
The other options are incorrect because they do not accurately reflect the meaning of the sentence. Option A is incorrect because it uses the word "was" instead of "is." Option B is incorrect because it uses the word "about" instead of "who." Option C is incorrect because it uses the word "questioned" instead of "asked."
The sentence "Who was the first man to fly in space?" is a direct question. It asks for a specific piece of information: the name of the first man to fly in space. The examiner is asking this question because they want to know the answer.
