Which of the following structures represents the peptide chain?

Options

A. `-overset(H)overset(|)(N)-underset(|)overset(|)(C)-underset(|)overset(|)(C)-overset(O)overset(||)(C)-underset(H)underset(|)(N)-underset(|)overset(|)-underset(|)overset(|)(C)-overset(H)overset(|)(N)-overset(O)overset(||)(C)-underset(|)overset(|)(C)-underset(|)overset(|)(C)-`
B. `-overset(H)overset(|)(N)-underset(O)underset(||)(C)-underset(H)underset(|)(N)-underset(|)overset(|)(C)-NH-overset(O)overset(||)(C)-NH-`
C. `-overset(H)overset(|)(N)-underset(|)overset(|)(C)-underset(|)overset(|)(C)-underset(|)overset(|)(C)-underset(|)overset(|)(C)-NH-underset(|)overset(|)(C)-underset(|)overset(|)(C)-underset(|)overset(|)(C)`
D. `-overset(H)overset(|)(N)-underset(|)overset(|)(C)-underset(O)underset(||)(C)-overset(H)overset(|)(N)-underset(|)overset(|)(C)-underset(O)underset(||)(C)-overset(H)overset(|)(N)-underset(|)overset(|)(C)-underset(O)underset(||)(C)-`

Answer

D

Explanation

`underset("Peptide chain")(-N-underset(|)overset(H)overset(|)(C)-underset(O)underset(||)(C)-overset(H)overset(|)(N)-underset(|)overset(|)(C)-underset(O)underset(||)(C)-overset(H)overset(|)(N)-underset(|)overset(|)(C)-underset(O)underset(||)(C)-`