Find the Suitable Base for the Following Reaction: C₆H₅OH

Find the suitable base for the following reaction: C₆H₅OH + :B → C₆H₅O:^- + H:B⁺
The pKa for C₆H₅OH (phenol) is 9.88. The formula for the base is followed by the pKa of its conjugate acid.

A) CN^-, pKa = 9.31
B) CF₃COO^-, pKa = 0.23
C) CH₃C(=O) CH₃, pKa = -7.2
D) CH₃COO^-, pKa = 4.74
E) OH^-, pKa = 15.73