Since it was missionaries I'm going to say Christianity.
Answer:
American Indian tribes were relocated to reservations in the 1850s because the federal government wanted "to give white settlers more land", however it is also true that many whites wanted the natives to have their own land, but this was not the primary reason.
Explanation:
Well amendment 4 is rights to searches and seizures and when people come to search your house, they would need a search warrant stating exactly what they are searching for. Otherwise they cannot legally search your house, and with that they cannot look for anything other then what is stated in the warrant.
Answer:
B. Political instability abroad
(I am leaning a bit on A aswell)
Explanation:
The US was searching for alternative sources as the original sources that were being used were not going to last forever
The answer is b the Caribbean