Answer:
He was Born into poverty, a hero in the War of 1812, he believed the common man should have a role in government.
It can. The mexican-american war also dealt with the future of the territories that were involved like the Texas territory. Since the United States won the territories from Mexico, the new colonies wanted to be slave colonies, and the general government disliked this. There would've been fewer slave colonies if they hadn't been conquered.
The answer choice C is my opinion