27. Why is transcription-coupled repair (TCR) considered particularly efficient when compared tonucleotide excision repair (NER)?
(A) The exinuclease employed in TCR removes a smaller fragment containing the damage.
(B) TCR targets transcriptionally active regions for repair over damage in less active parts of thegenome.
(C) It uses error-prone polymerases so it can move through damaged areas faster.
(D) It directly repairs the damage rather than removing and replacing the damaged strand.
(E) TCR requires less protein interactions.