(A) ** The United States established itself as a major world power.
(B) The United States formed a naval alliance with Germany.
(C) The United States repealed the Monroe Doctrine.
(D) The United States gained control of Texas.
EXPLANATIONS BELOW
Concept note-1: -U.S. victory in the war produced a peace treaty that compelled the Spanish to relinquish claims on Cuba, and to cede sovereignty over Guam, Puerto Rico, and the Philippines to the United States. The United States also annexed the independent state of Hawaii during the conflict.
Concept note-2: -The Spanish-American War was an 1898 conflict between the United States and Spain that ended Spanish colonial rule in the Americas and resulted in U.S. acquisition of territories in the western Pacific and Latin America.
Concept note-3: -Many agree that the main causes of the Spanish–American War was Cuba’s struggle for independence and the sinking of the USS Maine on 15 February 1898. An explosion, then thought to be caused by a mine, killed over 260 of the 354 American crew members.
Concept note-4: -Closely tied with becoming a world naval power, the Spanish American War resulted in the U.S. becoming worldwide economic power, able to extend its commercial reach while under naval protection. This was very closely tied to item#1, above. Prior to the war, the U.S. had no commercial fleet of which to speak.
Concept note-5: -How did the Spanish American War make the United States a world power? The US victory in the Spanish American War resulted in the Us gaining possession and/or control of many new territories. These and other territorial gains resulted in the creation of a new far flung empire.