Answer:
a. the soviet union agreed to withdraw its nuclear missiles from cuba.
Step-by-step explanation:
The Cuban Missile Crisis was a confrontation between the US and the Soviet Union during the Cold War.
The US failed to overthrow the Castro regime in Cuba, then to protect the island, Soviet Premier Nikita Khrushchev sent several nuclear missiles in Cuba. The US discovered them and then went into national television to inform the public that the US would make a naval blockade to the island to protect their country.
After nearly two weeks of anxiety and tensions, the crisis came to an end when the Soviet leader decided to remove the missiles from Cuba in exchange for a promise from the US to respect Cuba’s territorial sovereignty.