Why were we at war with Spain Erupts?

On April 25, 1898 the United States declared war on Spain following the sinking of the Battleship Maine in Havana harbor on February 15, 1898. As a result Spain lost its control over the remains of its overseas empire Cuba, Puerto Rico, the Philippines Islands, Guam, and other islands.

Which is Cuba my family origin :) hope this helps

i believe the answer is c