OG: Unlike historical evidence of weather patterns in other regions of the world

[AbeNeedsAnswers]

Unlike historical evidence of weather patterns in other regions of the world, which scientists find abundantly represented in tree rings, ancient glacial ice, or layers of sediment from seasonal plankton, the North Pole’s clues about its past climates are almost nonexistent.

A. the North Pole’s clues about its past climates are almost nonexistent.
B. the North Pole does not offer many clues as to its past climates
C. clues to the past climates of the North Pole are almost nonexistent
D. there are few clues about past climates for the North Pole
E. the past climates of the North Pole do not offer many clues

C

[JamesHammel]

The sentence starts with unlike, therefore we know X will be compared to Y
Unlike X, Y...
For the comparison to be correct:
- it must make logical sense
- it must be parallel

A - ' it's ' refers to ' the North Pole's clues ', this is illogical.

B - ' Unlike historical evidence... , the North Pole ' . The contrast is illogical

C - ' Unlike historical evidence... , clues to the past'. The contrast makes sense.
The answer is correct.

D - A climate can not be for a region. historical evidence is not parallel to there are

E - ' Unlike historical evidence... , the past climates ' . The contrast is illogical and the two items are not parallel.