Which is true when comparing a prescription drug and an over-the-counter drug?
A. Both prescription and over-the-counter drugs are dangerous if you
misuse them.
B. Prescription drugs are always more effective than over-the-counter drugs.
C. Prescription drugs can only be obtained with a doctor's authorization, while over-the-counter drugs can be purchased without prescription.
D. Over-the-counter drugs are always safer than prescription drugs.