GMAT Reading Comprehension (RC) | Re: Iguacu Falls, which sit on the border between Argentina and Brazil, ar

OA is Absolutely A

Here is the explanation

This is an inference question focusing on the final two paragraphs. Answer choices B and C are reasonable enough to assume, but the passage doesn’t give any support for them. Answer choice D is also reasonable, but it goes farther in scope than the passage supports by saying “crucial” and “world ecosystem.” Answer choice E is not supported by the
...

---