Answer:
a. the halting of construction on the Berlin Wall for several years
Explanation:
According to my research, The Cuban Missile Crisis was a 13 day back and forth confrontation between the United States and Russia because the United States discovered that Russia had a ballistic missile deployment in Cuba. Based on the answers provided we can say that all of the answers alleviated some tension between both countries except for the halting of construction on the Berlin Wall for several years. This had more to with German problems than the Cuban Missile Crisis.
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