Which of the following may be sources of infection?

Im sorry I only have 2.

Explanation:

Bacteria. These one-cell organisms are responsible for illnesses such as strep throat, urinary tract infections and tuberculosis.

Viruses. Even smaller than bacteria, viruses cause a multitude of diseases ranging from the common cold to AIDS.

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;