The team of research scientists will not know whether the procedure for reversing damage to individual genes was successful if the scientists do not get access to the advanced optical technology at the university.

(A) whether the procedure for reversing damage to individual genes was successful if

(B) whether the procedure of gene damage reversal was successful depending whether or not

(C) if the procedure to reverse damage to individual genes was successful if

(D) if the gene damage reversal procedure was successful, and if

(E) if the procedure of reversing damage to individual genes was successful whether


OA A

Source: Magoosh