Explain why II is not the answer if it can act both based on my solution. Please also check my solution. Thanks.

3. Which of the following compounds is both a Brnsted-Lowry acid and base? CH3OH CH3COCH H20 (CH3)3N IV I II MI A) I, II B) I, III C) II, IV D) I, IV H as a + C t :cl: + -C H-ci: + 1 Bronsted- Lowry base ? 41 H M 0. . t # + H H-80 H CHE a 11 At :B # as Bronsted towry acid - 14 H