Exit
which military action did president kennedy use during the cuban missile crisis that looks like an act of war but is not one?
a. missile strike
b. invasion
c. blockade
d. quarantine

It would be a "blockade" that was the action President Kennedy used during the Cuban Missile Crisis that looks like an act of war but is not one, since he wanted to make it difficult for the Russians to keep their missiles in Cuba. 

An elector in the electoral college.