Answer:
A. Salt
Explanation:
-A compound is when two or more atoms are chemically combined
The right answer for the question that is being asked and shown above is that: "B- destroyed in the stomach" If a virus is trapped by mucus in the nose, it is usually destroyed in the stomach. Viruses are very dangerous to our health.
It could form an ionic bond with Fluorine or Chlorine. (There are many others that it could as well but those are the most basic)