A sugar pill (which may be thought to be a drug by the patient) is also known as a(n):

A. diet pill
B. experimental dosage
C. placebo
D. energy pill

c
Rationale: A sugar pill may be used as a placebo and often has proven effective because the patient believes that it will help his or her condition. Diet pills are not usually made of sugar. Experimental dosages are medications in amounts that are being tested—not just sugar. Although sugar is a component of energy pills, it is not a key ingredient in them, and ener-gy pills are not referred to as sugar pills.