OreoShake wrote:
Whenever I am assured I have learnt something absolute in sentence correction, some gmat question creates ambiguity yet again.
As per my understanding, whenever we have a comma+conjunction form, it indicates the beginning of a new clause, meaning the noun/pronoun+verb form must exist.
In the correct answer choice, we find that after 'part of the Andes' comma+conjunction form is present, indicating that there should be clause following the conjunction. However we find no clause but rather ".........,
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