I'd suppose that the answer is most likely: c. Self-monitoring.
(I really hope this is of some help to you)
C. Not touching your mouth, nose, or eyes would be the correct answer because that is how germs spread. Hope this helped!
A digestion system specialist is a gastroenterologist
A few things can include taking a hot shower before bed, make sure you've completed everything you needed to do for the day, and go to bed on the right time, a bad habit would probably be staying up late to watch a movie or something
Answer:
I would say A. Heart disease. Because Aids(HIV) can be transmitted through another persons saliva or bodily fluids, so you can take out all of the above option too.
Explanation: