The answer to this question would be A. Montesquieu believed in separation of powers. There should be three branches and each branch should be able to "check" the other. No branch would have more power than the others. The two houses of legislature would be able to block bills introduced by the president, while the president can veto any bills he found improper that were drafted by the legislative branch.
Pull factor means a factor that attracts someone towards something, so the answer would be these 3 options:
Political tolerance of religious minorities
Abundant and cheap land
Abundant factory work
B. to support the industrial growth of the northern region of the United States
