Question

Which of the following represents the belief used to justify westward expansion of America's borders in the 1800s?

A. Monroe Doctrine

B. Manifest Destiny

C. Adams-Onis Treaty

D. Missouri Compromise

Answer 1

The answer to your question the answer would be B. Manifest Destiny!

:D

Step-by-step explanation:

Answer 2

The correct answer is B. Manifest Destiny.

Manifest Destiny represents the belief used to justify westward expansion of America's borders in the 1800's. Manifest Destiny helped create western settlement and war with Mexico.