Hailed as a key discovery in the science of evolution, the fossils of a large scaly creature resembling both a fish and a land-animal provide evidence of a possible link in the evolutionary chain from water-based to land-based organisms.

A. the fossils of a large scaly creature resembling both a fish and a land-animal provide evidence of
B. a large scaly creature resembling both a fish and a land-animal provides fossils that are evidence
C. a large scaly creature, whose fossils resemble both a fish and a land-animal, provides evidence of
D. the fossils of a large scaly creature, which resembles both a fish and a land-animal, provides evidence of
E. the fossils of a large scaly creature resemble both a fish and a land-animal and provide evidence of

Source: MGMAT
OA: [spoiler]A
[/spoiler]

[spoiler]Doubt: MGMAT says that 'D' is wrong because 'D' uses provides instead of "provide". If I correct that the sentence would be - Hailed as a key discovery in the science of evolution, the fossils of a large scaly creature, which resemble both a fish and a land-animal, provide evidence of a possible link in the evolutionary chain from water-based to land-based organisms.

Is this sentence correct? Is "which" referring to creature or the noun phrase "the fossils of a large scaly creature"?

Please explain?[/spoiler]