Answer:
B is the right option.
Explanation:
The idea that white Americans had divine rights for settling in entire North American continent was called as manifest destiny. This ideology inspired the various steps taken for removing and destroying the Native population. Before the civil war this idea was used to justify the acquisitions of Oregon Country, Texas and California. The term was coined by John L. O'Sullivan, who was the editor of magazine. He accidentally used the term which explained the national sentiment during nineteenth century.