I believe the answer is E. League of Nations.
It has alot of affect because if you have no setting the reader is confused like if two people split up and they are doing different things the reader wont know who is doing what.
NASA HQ are in Houston, Texas. Famous quote "Houston we have a problem" from Apollo 13 relates to it.
The correct answer is A. The vice president will become president.
Hope this helps ;)
Social class division an more complex religious beliefs.