Mark letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to the original sentence in each of the following questions. The place has a microgravity environment. Astronauts live and conduct research here. A: The place has a microgravity environment where astronauts live and conduct research. B: The place which astronauts live and conduct research has a microgravity environment. C: The place where astronauts live and conduct research has a microgravity environment here. D: The place where astronauts live and conduct research has a microgravity environment.

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