Answer:
the study of the structure, reaction, and composition of different kinds of substances
Explanation:

I would say E as it has to do with nutrition and dietetics and they would be registered.
Based on the sentence "a placebo is amedication that elicits a positive emotional response in an experimental subject", a placebo is a simulated medically ineffectual treatment for disease or other medical condition intended to deceive the recipant. the answer are: FALSE
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