Manifest Destiny was the belief that
A. slavery should extend westward beyond the South
B. the United States should invade and capture all of Mexico
C. Native Americans had a right to the land they lost.
D. the United States should own most or all of North America
In the United States, Manifest Destiny was the belief that "D. the United States should own most or all of North America", since its proponents wanted the US to spread from the Atlantic to the Pacific.