armaan700+ wrote:In order to evenly and effectively paint a rough surface, it is necessary to sand it and apply primer before applying the paint.

(A) it and apply primer before applying the paint - Correct
(B) it and prime it and paint it - Repetitive
(C) it, then prime it, then paint it - Repetitive
(D) the surface and apply primer before you apply paint to the surface - Repetitive
(E) the surface, apply primer to the surface and then paint it - Repetitive use of surface

All of the answer choices except are wordy n repetitive. Hence (A) is correct.