If you sense that a friend is showing signs, id suggest asking the friend small questions, not BIG OBVIOUS ONES, that will eventually lead up to your answer, OR you could do some investigating and talk to some of the friends close ones, asking them if they know anything. hope this helps! if you'd like i could help you further
Knowing how to easily manipulate the people around you. Not exactly a good thing though.
D.) Both A and C.
Because your body will learn that i will get food more frequently even if is just a small portion and will burn more fat(energy) during that short time period and breakfast is the first meal of the day after nit eating for at least 8 hours you need the energy to start your day and so your body has the energy to do things that would make you feel more healthy and with energy.