I'm at least 85% sure that the answer would be A, it seems like the most secure answer to give.
Answer:
Scarcity as an economic concept "... refers to the basic fact of life that there exists only a finite amount of human and nonhuman resources which the best technical knowledge is capable of using to produce only limited maximum amounts of each economic good ... ."[1] If the conditions of scarcity didn't exist and an "infinite amount of every good could be produced or human wants fully satisfied ... there would be no economic goods, i.e. goods that are relatively scarce...
the Legislative branch (specifically the Senate) must ratify treaties. This check on the power of President is part of the system of checks and balances.
I may be wrong but i read that if the annual nile floods were to low it could cause drought and they would starve.
