Should be struck -> morally obligated to be struck. An awkward meaning and thus we can eliminate options A, B, and E.
(C) a meteorite will strike one human being once in every nine years. "a human being" is a better expression. Moreover, the sentence implies that all the meteorites in the sky will find a person to strike. That's surely not the intended meaning
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(D) every nine years a human being will be struck
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(C) a meteorite will strike one human being once in every nine years. "a human being" is a better expression. Moreover, the sentence implies that all the meteorites in the sky will find a person to strike. That's surely not the intended meaning
(D) every nine years a human being will be struck
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