What was not a reason for tensions between the United States and Cuba in the 1950s?

A) Cuban poverty caused by an American-backed dictator

B) a revolution that brought a communist to power

C) buildup of the Cuban army

D) nationalization of American businesses

c.buildup of the cuban army

Explanation:

no explanation needed

switch around #3 and #4

explanation:

i hope this , im not 100% on this i really hoped this

in 1897, pershing became a tactical officer at west point, and that's where he was given the nickname "black jack." pershing's first name is "john," for which "jack" is a nickname, and he was a white man who commanded black troops. hence "black jack".