Which Workout Recovery Drink Is Better: Water, a Fortified Sports

Which workout recovery drink is better: water, a fortified sports drink, or chocolate milk? In a study, researchers randomly assigned 50 similar athletes to one of three groups. All subjects
Participated in the same workout. Depending on which group they were assigned to, subjects then
Drank 12 ounces of water, a fortified sports drink, or chocolate milk. Afterwards, subjects were
Measured for muscle fatigue. Researchers found that the athletes that drank chocolate milk after a
Workout recovered from muscle fatigue faster than either those who drank water or the sports
Drink. For this controlled experiment, identify the treatment and the response variables.

A) Treatment: Chocolate milk only. Response: Change in muscle fatigue.
B) Treatment: Change in muscle fatigue. Response: Water, sports drink, or chocolate milk.
C) Treatment: Water, sports drink, or chocolate milk. Response: Change in muscle fatigue.