Studies that have compared the different types of insects in coffee plantations and tropical forests have reported either finding a similar or a greater variety in plantations.

(A) and tropical forests have reported either finding a similar or a
(B) with those of tropical forests have either reported finding a similar or
(C) with those in tropical forests have reported finding either a similar or a
(D) to tropical forests have either reported finding a similar or
(E) to those of tropical forests have reported either finding a similar or

Answer is as we need to use the compared.... with......and to maintain parrallism.We should use" in the tropical.."

Compare with - Similar categories
Compare to - Different categories

Here its compare with

We need those to refer back to insects

We need to maintain parallelism

Hence correct answer choice is C

Studies that have compared the different types of insects in coffee plantations with those in tropical forests have reported finding either a similar or a greater variety in plantations.

Compared with is used to state the differences between the two objects of comparison, hence answer will be (C)
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The only answer that maintains proper ‘either X … or Y’ X || Y parallelism is C - ‘either a similar or a greater’. All the other options are clearly not parallel.

C: Correct
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Studies that have compared the different types of insects in coffee plantations and tropical forests have reported either finding a similar or a greater variety in plantations.

(A) and tropical forests have reported either finding a similar or a - Either finding a similar or a greater variety - not parallel
(B) with those of tropical forests have either reported finding a similar or - either reported finding a similar or a greater variety
(C) with those in tropical forests have reported finding either a similar or a - Correct
(D) to tropical forests have either reported finding a similar or - either reported finding a similar or a greater variety
(E) to those of tropical forests have reported either finding a similar or - either findinga similar or a greater variety

Answer C
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