How did the Cold War continue in the 1970s & 1980s? How and why did the Cold War end?

The Cold War began after the surrender of Nazi Germany in 1945, when the uneasy alliance between the United States and Great Britain on the one hand and the Soviet Union on the other started to fall apart.The Cold War (1979–1985) refers to a late phase of the Cold War marked by a sharp increase in hostility between the Soviet Union and the West. The Soviet Union invaded Afghanistan following the Saur Revolution in that country, ultimately leading to the deaths of around one million civilians.Historians have identified several causes that led to the outbreak of the Cold War, including: tensions between the two nations at the end of World War II, the ideological conflict between both the United States and the Soviet Union, the emergence of nuclear weapons, and the fear of communism in the United States.

the space race was a battle to make advanced technology to get to the moon and to get a better understanding of space.

the answer would be a).