Which of the following represents a peptide chain ?A. `-overset(H)overset(|)(N)-underset(O)underset(||)(C )-underset(H)underset(|)(N)-overset(|)underset(|)(C )-NH-underset(O)underset(||)(C )-NH-`B. `-overset(H)overset(|)(N)-underset(O)underset(||)(C )-overset(|)underset(|)(C )-overset(|)underset(|)(C )-overset(|)underset(|)(C )-overset(H)overset(|)(N)-overset(|)underset(|)(C )-overset(|)underset(|)(C )-overset(|)underset(|)(C )-`C. `-overset(H)overset(|)(N)-overset(|)underset(|)(C )-underset(O)underset(||)(C )-overset(H)overset(|)(N)-overset(|)underset(|)(C )-underset(O)underset(||)(C )-overset(H)overset(|)(N)-overset(|)underset(|)(C )-overset(O)overset(||)(C )-`D. `-overset(H)overset(|)(N)-overset(|)underset(|)(C )-overset(|)underset(|)(C )-underset(O)underset(||)(C )-underset(H)underset(|)(N)-overset(|)underset(|)(C )-overset(|)underset(|)(C )-underset(H)underset(|)(N)-underset(O)underset(||)(C )-overset(|)underset(|)(C )-overset(|)underset(|)(C )-`