Answer:
b) destruction of Berlin Wall
Step-by-step explanation:
According to a different source, these are the options that come with this question:
a) overthrow of communist forces in France
b) destruction of Berlin Wall
c) abolishment of soviets parliament
d) Salt II treaty
The destruction of the Berlin Wall was the first telltale sign of the collapse of the Soviet Union. The Berlin Wall was a concrete barrier that prevented travel between the German Democratic Republic and West Berlin. The wall also symbolized the ideological separation between these two regions. The wall was present from 1961 to 1989, but it was destroyed between 1989-1991, leading to German unification on October 2, 1990.