A Major Pharmaceutical Company Is Conducting Clinical Trials on a New

Multiple Choice

A major pharmaceutical company is conducting clinical trials on a new drug it wants to bring to market.The company surveys 2000 people who have the particular condition that the drug is designed to treat.A portion of the people surveyed receive a high dose of the drug, a portion of the people surveyed receive a medium dose of the drug, and the remaining portion of the people surveyed receive a placebo (sugar pill) .The variable in this experiment is:

A) the 2000 people surveyed.
B) all people with the condition that the drug is intended to treat.
C) the dosage of drug administered to each person.
D) the placebo (sugar pill) .