DONT CLICK THE LINK FROM THE OTHER GUY WHO ANSWERED ITS A SCAM
He, like many other Americans at the time, believed in the Manifest Destiny.
The Manifest Destiny was the belief that America was destined to reach the Pacific ocean (from sea to shining sea).
I belive the answer is New Orleans
I believe the answer would be d. but not 100% sure
Ir was centered around keeping the balance between free and slave states. This issue was mainly approached after the US won the Mexican-American War. They gained a lot of land after the Guadalupe-Hidalgo Treaty, but there was controversy on whether the acquired land should have been free or slave states.