Should be D.

Shouldnt A being in active voice be the answer instead of D, which is passive.

Please clarify.

Thanks
Mankey

I agree with you Monkey..A should be the answer..

This one has to be A. Look at this in D - the "only X, not Y" construction starts after "concerns of its prospective clients", leaving "those of surrounding homeowners" without a plural noun reference for "those". X and Y in that "only X, not Y" construction need to be parallel, but the "X" doesn't have a possessive in D, so the "those of" after the underline is wrong.

D also adds this problem - "its" is a pronoun without logical reference. The only prior noun is "planning stages", and "the condominium corporation" comes after the verb, detached from "the concerns" so the "its" doesn't directly apply to the corporation.


Further, B and C use "their" to modify "corporation", so those are out for pronoun reasons. And E makes it sound as though the clients had their concerns taken into account "by the condo corporation and not by the condo corporations of surrounding homeowners", which isn't a logical meaning. Plus, the "only" in E splits the two items into not-parallel components:

only taken into account by X, not those of Y

Without a "by Y" in there it's not parallel and E is therefore wrong.

Accordingly, A is correct - it's parallel and the pronouns all match up properly.

B and C: "their"(plural) doesn't have an antecedent.
D and E: "by the condominium corporation, not those of surrounding homeowners." not parallel.
A: "its" correctly refers to "condominium corporation". Hence, A is the answer