What policies kept the U. S. from entering World War I when it began?

Question options:

The Monroe Doctrine and anti-imperialism

Imperialism and democracy

Isolationism and neutrality

no statements but ok.

the statement that best describes the idea of manifest destiny that was used in the 19th century would be that "it was fate that the united states would continue to  expand westward," since people thought the us was "destined" to do so. 

i can

explanation:

the answer is a, salt plain