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Verbal·Standard English Conventions·Boundaries

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On March 6, 2002, Canadian astronomers detected a striking and unusual phenomenon occurring in the constellation Lepus, 160 million light-years from        explosion of a massive star, also known as a supernova, an extremely bright yet transient event that typically results from the collapse of a star’s core.

Which choice completes the text so that it conforms to the conventions of Standard English?

A

Earth the

B

Earth, it was the

C

Earth: the

D

Earth; the