Answer:
c.The United States enforced a military quarantine in international waters.
Step-by-step explanation:
According to a different source, these are the options that come with this question:
a. Fidel Castro negotiated a secret agreement with the United States.
b.The United States dismantled its missiles in Turkey.
c.The United States enforced a military quarantine in international waters.
d.Nikita Kruschev was removed from office in the Soviet Union.
The Cuban Missile Crisis was a confrontation between the United States and the Soviet Union during the Cold War. The reason was the discovery of Soviet missiles in Cuba.
Before the Cuban Missile Crisis occurred, the United States had enforced a military quarantine in international waters. Moreover, the United States had imposed a naval blockade to prevent Soviet missiles from reaching Cuba.