We need to compare insects 'in' coffee plantations with insects/those 'in' tropical forests. C is the only option that uses this 'in' and should be the correct answer.
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Answer is as we need to use the compared.... with......and to maintain parrallism.We should use" in the tropical.."

we can discard B and E due to "of"
D is not a correct comparison.
but what is the issue with "A" .

Can an expert reply....
Thanks.

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

The main error (well, at least an important error) in the incorrect answer options is the faulty parallelism in the "either-or" construction.

In A and E, you need "or finding". In B and D, you need "or reported finding".


--Prasad
EnterMBA.in
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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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Comparison between types of insects IN coffee plantation and IN tropical forests. Only C survives.

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Ruchi

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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The answer is C

Split Correct idiom is compared with to compare two similar entities .
Split 2 Use and in original sentence is wrong

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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