Which aspect of a reconstruction plan would Charles Sumner most likely support?

Reconstruction had produced another deadlock between the president and Congress. Charles Sumner quote regarding Andrew Johnson's. Reconstruction Plan

the recostruction plan

reasoning, quoted form workbook text:

"Charles Sumner quote regarding Andrew Johnson’s

Reconstruction Plan, “This is one of the last great battles with slavery. Driven from the legislative chambers, driven from the field of war, this monstrous

power has found a refuge in the executive mansion, where, in utter

disregard of the Constitution and laws, it seeks to exercise its ancient,

far-reaching sway. All this is very plain. Nobody can question it.

Andrew Johnson is the impersonation of the tyrannical slave power. In

him it lives again.” (Statement made during the debate on impeachment.)

the answer is a) the proclamation of 1763.