A total solar eclipse occurs when the moon passes directly between the sun and Earth. This phenomenon is most spectacular at the point of greatest _________ known as totality.

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writing

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

A

eclipse. Also

B

eclipse also

C

eclipse; also

D

eclipse, also

Correct Answer: D

Choice D is the best answer. The comma correctly connects the non-essential participial phrase "known as totality" to the noun it modifies.

Choice A is incorrect because "Also known as totality" is a fragment. Choice B is incorrect because it lacks necessary punctuation to separate the modifier. Choice C is incorrect because a semicolon cannot precede a fragment.