For many Americans, the Mexican war of 1846 - 1848 was justified by:

A. The Monroe doctrine

B. Manifest destiny

C. Imperialism

D. Isolationism

Respuesta :

The Mexican-American war of 1846-1848 was justified in the opinions of many by the idea of "Manifest Destiny" since this held that the US was "destined" to expand to the Pacific Ocean. 
the monroe doctrine is the correct answer