Answer:
Among the options given below the correct answer is option C.
taking down the Berlin wall.
Explanation: President Richard Nixon had a constructive foreign policy. He was more intended into the foreign policy than domestic policy.
During his office time his assistant of national security affairs was Henry Kissinger. This duo worked very closely about the bureaucracy.
One of the most important foreign policy of President Nixon was visit to China. His visit to China ended the isolation between the diplomatic and economic relationship between China and USA. His visit opened trade with the far east.
On the other hand His visit to China made great impressions on the Soviet Union. Then Nixon visited to Moscow in 1972 which led to the Detente between America and Soviet Union.
Nixon also created pressure on North Vietnam after improving relation with China and USSR. He was able remove troops from Vietnam and ending the Vietnam war.
But the Berlin wall was taken down on 1989 when Nixon was not the President of USA.
So taking down of Berlin wall was not a result of the Nixon and Kissinger new diplomatic discussion.
