Answer:
D. He denied any knowledge of it.
Step-by-step explanation:
In August, Nixon gave a discourse in which he swore that his White House staff was not engaged with the break-in. Most voters trusted him, and in November 1972 the president was reelected.
It later became exposed that Nixon was not being honest.
At that point, Nixon and his helpers brought forth an arrangement to instruct the Central Intelligence Agency (CIA) to block the FBI's examination of the wrongdoing. This was a more genuine wrongdoing than the break-in: It was an abuse of presidential power and a purposeful obstacle of justice.