Question

In the 1840s the term "Manifest Destiny" was used by many Americans to justify

1) Westward expansion into lands claimed by other nations
2) The extension of slavery into the territories
3) war with Russia over the Oregon territory
4) The acquisition of colonies in Latin America

Answer 1

The answer is 1, westward expansion.
Manifest Destiny was the belief that Americans were destined to go west and claim land from the Atlantic Ocean to the Pacific Ocean, therefore it is 1 because it involves going west.