During the Senate Watergate Hearings, One of the Most Damaging

During the Senate Watergate hearings, one of the most damaging revelations for Richard Nixon was that

A) Vice President Spiro Agnew had accepted bribes.
B) he frequently used obscenities and racial slurs.
C) the special prosecutor was about to resign owing to lack of White House cooperation.
D) Congress intended to invoke the Twenty-Fifth Amendment.
E) his conversations in person and on the telephone had been recorded on tape.