Multiple Choice Which of the following describes the placebo

Multiple Choice: Which of the following describes the placebo effect? Subjects may respond to a treatment simply because they believe it is affecting them. At least one block of subjects in an experiment receives only placebos. An experiment is repeated many times with real drugs and placebos. Subjects are prevented from knowing whether they are receiving real drugs or placebos. Subjects receive inactive sugar pills instead of real medication.

Solution

solution-

the option is E

this is a fake treatment in which the subject receives inactive substances like distilled water,sugar pills instead of real medication