A member of the Cherokee Nation, Mary Golda Ross is renowned for her contributions to NASA’s Planetary Flight Handbook, which ______blank detailed mathematical guidance for missions to Mars and Venus.
Which choice completes the text so that it conforms to the conventions of Standard English?
Correct answer: A
Explanation
Choice A is the best answer. The convention being tested is the use of finite verbs in a relative clause. Relative clauses, such as the one beginning with “which,” require a finite verb, a verb that can function as the main verb of a clause. This choice correctly supplies the clause with the finite past tense verb “provided.”
Choice B is incorrect because the non-finite participle “having provided” doesn’t supply the clause with a finite verb. Choice C is incorrect because the non-finite to-infinitive “to provide” doesn’t supply the clause with a finite verb. Choice D is incorrect because the non-finite participle “providing” doesn’t supply the clause with a finite verb.
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