What Did Events Surrounding the Watergate Break-In and Cover-Up Suggest

What did events surrounding the Watergate break-in and cover-up suggest about Richard Nixon?

A) That despite his involvement after the fact, he believed that even the president was not above the law.
B) He was willing to condone illegal activity if it would silence his political enemies.
C) His refusal to surrender the White House tapes initially showed strength and bolstered his standing with the American people.
D) A and B