Each sentence has four underlined words or phrases. The four underlined parts of the sentence are marked (A), (B), (C) and (D). Identify the one underlined word or phrase that must be changed in order to make the sentence correct.

$\mathrm{\underset{\text{A}}{\underline{Writers}}}$ $\mathrm{\underset{\text{B}}{\underline{like}}}$ William Shakespeare and Edgar Allan Poe $\mathrm{\underset{\text{B}}{\underline{are}}}$ not only prolific $\mathrm{\underset{\text{D}}{\underline{\text{But too interesting.}}}}$