Answer:
The outcomes of the Spanish-American War were:
- The United States became a world power.
- Puerto Rico became a U.S. territory.
The United States did gain territory in Asia as a result of the Spanish-American War, specifically the Philippines, but this was not one of the options provided in the question. The United States did not annex Cuba; although the U.S. was involved in Cuban affairs for some time after the war, Cuba gained its independence from Spain and was not annexed by the United States.