If A is correct but wordy and if another option is also correct and concise, do we still select the other answer do we just select A?
The reason why I ask is I know that unless A is wrong, you can not select any other answer...

Question:

Darwin was not the first to advance a theory of evolution; his tremendous originality lay in the fact that he proposed the idea of natural selection as the means by which evolution worked.

(A) lay in the fact that he proposed the idea
(B) lay in the fact of his proposing the idea
(C) laid in the fact of his proposing the idea
(D) laid in his proposal
(E) lay in his proposal