GMAT Prep Question

[Sumit69]

Minnesota is the only one of the contiguous forty-eight states that still has a sizable wolf population, and where this predator remains the archenemy of cattle and sheep.
(A) that still has a sizable wolf population, and where
(B) that still has a sizable wolf population, where
(C) that still has a sizable population of wolves, and where
(D) where the population of wolves is still sizable;
(E) where there is still a sizable population of wolves and where


Why c is wrong. Correct answer is E. plese explain.

[Kuba]

Minnesota is the only one of the contiguous forty-eight states that still has a sizable wolf population, and where this predator remains the archenemy of cattle and sheep.
(A) that still has a sizable wolf population, and where
(B) that still has a sizable wolf population, where
(C) that still has a sizable population of wolves, and where
(D) where the population of wolves is still sizable;
(E) where there is still a sizable population of wolves and where


Why c is wrong. Correct answer is E. plese explain.

A. fails to follow the parallelism rules that...., and where is a wrong structure. Should be either that...., and that or where....., and where
B,C, same mistake.
D has the semi colon which is unnecessary and wrongly used.
E follows the rule of parallelism - where....., and where

The key to recognize that this sentence might be testing parallel structure is the word "and".

[BTGmoderatorRO]

option E is the correct option as it has collective naming and conjunction.

option A has a wrong usage of apostrophe. it shouldn't be use when using 'and'.
In option B- wrong usage of collective naming.
option C- comma shouldn't be use when joining words with 'and' here
option D- not a complete answer and semi colon is not necessary