The word is gastroenterology. Hope this helps you !
Can't answer this because it needs to be <em>your</em> experience.
I would download my fitness pal and calculate the four slices of pizza and 16 ounce soda. The app is free
Answer: Work hard, get good sleep, eat healthy foods, pay attention, and manage your time wisely.
C is already correct but I would switch the strategies for A and B