divineacclivity Wrote:Experts, could you explain why the answer can't be C. Thanks in advance.
C. a large scaly creature, whose fossils resemble both a fish and a land-animal, provides evidence of
Is it because the discovery can't be the large creature whose fossils resemble a fish n an animal?
Correct. What is "Hailed as a key discovery in the science of evolution"? Was it the creature itself that was discovered? No, just its fossils.
This is a very common way the GMAT tests modifiers . . . a long descriptive phrase starting the sentence followed by a comma. Make sure that the noun after the comma is what is actually described by that phrase.