Recent pollen analyses of the Aran Islands have led some researchers to propose that the now treeless islands were once

Question

Recent pollen analyses of the Aran Islands have led some researchers to propose that the now treeless islands were once wooded. This hypothesis blank that certain trees, such as P. sylvestris, survived without interruption or human intervention throughout the Holocene cannot stand, researchers Michael O’Connell and Karen Molloy counter, unless other explanations can first be ruled out.

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. The nonfinite present participle "suggesting" is correctly used to form a restrictive participial phrase ("suggesting...Holocene") within the main clause ("This hypothesis...cannot stand..."). This participial phrase functions as part of the sentence&rsquo;s subject ("This...Holocene"), providing essential identifying information about what the hypothesis states-namely, that certain trees survived without interruption or human intervention throughout the Holocene. Choice B is incorrect because it results in an ungrammatical sentence. The finite verb "suggested" can&rsquo;t be used in this way within the subject of the sentence. Choice C is incorrect because it results in an ungrammatical sentence. The finite verb "suggests" can&rsquo;t be used in this way within the subject of the sentence. Choice D is incorrect because it results in an ungrammatical sentence. The finite verb "has suggested" can&rsquo;t be used in this way within the subject of the sentence.

Question f731e4