A myth would be that you can get AIDS or HIV by touching or kissing someone who has the STD. In fact, you can only get it from them by touching their blood or through intercourse.
1. So the patient could make a prevention before the illness happen, not just taking care of it when it happens
2. Doctor will not available 24/7 for most people, so an education in self-care will give a little bit knowledge how to handle emergency situation when professionals are not available
3. Self-care will affect all aspects of people's life. It will influence our productivity in our job, mind positivity, etc.
Antibiotics would most likely be the best answer for this question.
So it would be A.
Take some simple measurements, add a dash of algebra, and you basically have a way to measure an unknown mass.