"B is the answer because the Europeans were immune to the virus and the Indians weren't so they grew very ill which helped the Europeans."
The problem was that the colonists were trying to take away a land which belonged to another people. Some native americans were able to let them go and enable them to live in peace where they chose, other native americans decided they would opt for the more harmful choice.
The correct answer to this open question is the following.
Although there are no options attached we can say the following.
The judicial branch served as a check on the Executive and Legislative branch in that teh Supreme Court had the power and the faculty to declare a law unconstitutional.
That was the consequence of the judicial review established by the United States Supreme Court in 1803 when it resolved the case Marbury v. Madison.
The Supreme Court could review and decide the constitutionality of decisions made by the Executive branch and the Legislative branch because no action should contradict the Constitution of the United States.
That is the beauty of the checks and balances system in the federal government. That none of the three branches has more power over the other two.
The answer is C) It prohibited slavery in most of the former Louisiana Territory except for Missouri.
Why is it C)? well its C) because the Missouri Compromise (1820) <span>prohibited slavery in most of the former Louisiana Territory except for Missouri.</span> Specifically, it prohibited slavery above 36°30'N. This was meant to prevent slavery from being an issue as new states was added, but this would not be the case.