Question

which pathogen is killed by antibiotics?
a. fungus
b. protist
c. bacterium
d. virus

Explanation:

Antibiotics are specifically designed to target and kill bacteria (or inhibit their growth). Fungi are treated with antifungals, viruses with antivirals (in some cases, but antibiotics don't work on viruses), and protists have their own specific treatments. So the pathogen killed by antibiotics is a bacterium.

Answer:

C. Bacterium