Select the statement that most accurately describes the action of antimicrobial drugs today. Select one:
a. Antiviral drug treatment is more effective than vaccination against a viral disease.
b. Effective antiviral drugs have a long history of development and use.
c. Antiviral drugs often result in toxic side effects due to their inhibition of host cell activity.
d. The development of antiviral drug resistance has not been observed, as compared to the high rate of antibiotic resistance seen today.