One president began his career as a school principal and later became a congressman. this president had a very short term in office because he was assassinated by a man with mental problems.

If James Garfield is one of the choices, it'd be him.

Explanation:

disease was the number one killer of native peoples. they had had little exposure to the diseases of europe. this led to some villages being almost completely wiped out and some tribes destroyed.

the puritans were a group of people who grew discontent in the church of england the common unity strengthened the community.