United states cuts grain sails to the soviet union . united sates stops sale of technology to the soviet union . united states refused to participate iin the 1980 olymic. What woulld be the best title for this list?
A: Responses to the invasion of Afghanistan
B: Causes of the cold war
C: Effects of the fall of the berlin wall
D: Factors leading to the fall of the soviet union
Hellllp!