Answer:
A and C
Step-by-step explanation:
It's A because the reason why the Cuban missile crisis ended when the soviet union told the us that they would move missiles out of Cuba if they moved missiles out of turkey. It's C as well because the US was using a lot of effort to try to stop the spread of communism to the us and they made numerous attempts to stop it from happening in Cuba such as over 200 attempted assassinations' on Fidel Castro, the reason they did it was because they didn't want communism to be so close to the US mainland.