The answer is B. Bay Of Pigs Invasion
Before the revolution, Cuban was led by Fulgencio Batista, an Ally of the united states.
But after the Revolution, Batista was overthrown and replaced by Castro, who chose to make an Alliance with the soviet Union.
In 1961, under a Direct Command from Castro, Cuba launch a military invasion to the bay of pigs, ( which Failed because it was undertaken by CIA)
The answer is topographic maps
The answer is most likely to be B little interest in the world to come