According to the traditional RYB (red-yellow-blue) color model, yellow is a complementary color to purple. However, yellow ______ blank considered

Question

According to the traditional RYB (red-yellow-blue) color model, yellow is a complementary color to purple. However, yellow blank considered complementary to blue in modern color theory.

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

Accepted Answer

Choice A is the best answer. The convention being tested is the use of verb forms within a sentence. A main clause requires a finite (tensed) verb to perform the action of the subject (in this case, "yellow"), and this choice supplies the present tense verb "is considered" to indie that yellow is considered a complementary color to blue in modern color theory. Choice B is incorrect because it results in an ungrammatical sentence. The nonfinite participle "having been considered" doesn&rsquo;t supply the main clause with a finite verb. Choice C is incorrect because it results in an ungrammatical sentence. The nonfinite to-infinitive "to be considered" doesn&rsquo;t supply the main clause with a finite verb. Choice D is incorrect because it results in an ungrammatical sentence. The nonfinite participle "being considered" doesn&rsquo;t supply the main clause with a finite verb.

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