The Term Détente Has Been Used to Describe President Nixon's

The term détente has been used to describe President Nixon's .

A) methods of improving U.S. relations with China and the Soviet Union
B) threat to use nuclear weapons against the Vietcong during the Vietnam War
C) attempts to get China and the Soviet Union to declare war on each other
D) failed efforts to conceal the role that he played in the Watergate scandal