by thinking through this question, and thinking deeply in it, i would say that the A, would fit the best. Why?
because if you fast in the wring way, or after fasting eat a lot, that gives a lot of pressure to your body, and that may really give a lot of problems. our organism needs food daily, and if we do not do that always, then at least twice a day. but yes, in my own experience, i used to fast, and if i do, and after start eating, like meat, or something this hard, then my head hurts, my stomach growls, and it is not well.
Hope that this helps you!
Good Luck! =)
