Answer:
A.
Explanation:
During the Spanish-American war in April 1898-December 1898, the USA promised Cuba of a free and independent government. Cuba was one of the colonies by Spain, along with Puerto Rico, the Philippines, and Guam.
In second series of negotiation, the fate of the Philippines was to be decided. Carl Schurz, an anit-imperialist was against imperialization of the Philippines. Thus, he wrote an article opposing the imperialism of America.
The term repeatedly used by Schurz is 'subjugation.' The claim that Schurz is making by using this term is that America is taking an imperialist position over the Philippines, and claim sovereignty over the state.
Therefore, option A is correct.