At the end of century Cuban rebels were fighting to free themselves from 400 years of
rule

Hello There!!

I think the answer is:

History of Cuban. or The Spanish-American War....

Because, By December 7, President Cleveland reversed himself declaring that the United States might intervene should Spain fail to end the crisis in Cuba. Which It was a lack of political representation, and high taxes.

d)to gain support for the independence movement.

hope this : )