Who answers social studies questions on this website? are they social study professors or other website users?

i only have part a but here is the first one: - lewis and clark are born

- lewis marries sacajawea and clark is jealous  

- clark drowns lewis and then goes to jail

answer; exploratory;

answer; foreign services officers;

answer; with few regulations protected the prices of crops which made farmers leave their farms and migrate to the big cities to work in factories;