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.
I believe the answer would be a
A government regulation is that the answer!!
Answer:
The Charaka Samhita also includes sections on the importance of diet, hygiene, prevention, medical education, the teamwork of a physician, nurse and patient necessary for recovery to health.