How did the concept of Manifest Destiny encourage Americans to move west?

Explanation:

Manifest Destiny and westward expansion were directly related. The term "manifest destiny" was created in 1845 in a magazine. It was the idea that Americans had a God-given and inevitable destiny of expanding their democracy and people across the continent.

With this idea, Americans had a justification and reason to move west. So, this concept of Manifest Destiny, plus some other factors, stoked and fueled United States expansion.

the answer is c.richard m. nixon