The answer is D, all of the above
Because you learn better when you take care of yourself and your body. You need to be fed and bathed to be in the right mindset to focus and be able to learn. Your environment is a huge factor.
The vegetables are cut in to smaller, finer pieces
Um I'd have to definitely say that the way Doctors are always giving patients antibiotics for everything doesn't help. I really just makes you feel worse. An antibiotic is not the answer for every sickness.
Hope this helps! :)