The correct answer is : holding a rank ( any rank really) in the military (d): the president does not need to be in military.
Actually, B is also not a requirement: one must be a natural born citizen, that is a citizen on birth- but one can be born to American parents abroad. So both b and d are correct, but i am sure that the question meant d as the answer.
Well there are many, low in food. People need homes, People need water, warmth and a hole lot more.
Hope this helps!
There is an energy deficit at the poles.
Mediterranean and Africa, such as the silk road and other trade routes to Africa and other Arabian areas.