Multiple Choice
Researchers are conducting a study to determine the effects of vitamin D on the human body.The study involves providing pills that contain vitamin D to one group of human subjects and pills that do not contain the vitamin or other active ingredients to another group of people.The pills that do not contain vitamin D are
A) placebos.
B) antidotes.
C) distractors.
D) interventions.
Correct Answer:
Verified
Correct Answer:
Verified
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