40. Which description of CRISPR/Cas9 is correct?
(A) CRISPR/Cas9 is a novel protein metabolic pathway.
(B) CRISPR/Cas9 is a novel coenzyme.
(C) CRISPR/Cas9 is a novel protein purification technology.
(D) CRISPR/Cas9 is a novel technology that can be used to edit genes within organisms.