Mutations That Result in Resistance to Specific Antibiotics in Bacterial

Multiple Choice

Mutations that result in resistance to specific antibiotics in bacterial organisms occur

A) only when the bacteria are exposed to the drug to which they become resistant.
B) more often when the bacteria are exposed to the drug.
C) at any time,even when the bacteria are not exposed to the drug.
D) only when the bacteria are exposed to radiation or other mutagens.