i would say c, because many people are in need for new livers, kidneys, etc, and it does save a lot of lives per year
D I would presume,money is irrelevant when your in a disaster because you can't eat,drink,or survive off of it
While you didn't provide any following sources, healthy sources of energy for humans are usually considered to be different types of fruits and vegetables, lean meats, wholewheat grains, nuts, seeds, and healthy oils. All these constitute a healthy human diet and are a healthy source of energy.
