Question

question 9 of 10
why are antibiotics unhelpful for treating the common cold?
a. antibiotics cannot treat illnesses.
b. viruses are not killed by antibiotics.
c. colds are caused by antibiotics.
d. colds are caused by bacteria.

Explanation:

Antibiotics target bacteria. The common cold is caused by viruses. Since viruses aren't bacteria, antibiotics can't kill them. Option A is wrong as antibiotics do treat bacterial illnesses. Option C is incorrect as colds aren't caused by antibiotics. Option D is wrong because colds are caused by viruses, not bacteria.

Answer:

B. Viruses are not killed by antibiotics