Target4bschool
Since it was indicating preference (better served by), I eliminated options which didn't include 'rather than' and got it wrong.
I understand the issue,
Target4bschool. Sometimes it can help to lay bare a sentence to avoid getting tangled up in all the "fluff," and here, on a basic level, the idiom we are looking for is
better A than B. This understanding alone can help us to eliminate all the other answer choices. Picture a ghost
better served by at the head of each of the following options (and for extra credit, notice the parallel
by):
Target4bschool
better served by (A) volunteers of this kind instead of by people who live in accommodations specially designed for them
better served by (B) volunteers like these rather than people who live in accommodations specially designed for it
better served by (C) these volunteers instead of by people who live in accommodations specially designed for them
better served by (D) such volunteers than by people who live in accommodations specially designed for them
better served by (E) such volunteers rather than by people who live in accommodations specially designed for it
I hope that helps. Thank you for sharing, and good luck with your studies.
- Andrew