D) It has complicated rituals.
2. What dose the term the placebo effect mean?
A) It means the mind-troubling effect.
B) It means the psychological effect.
C) It means the harmful effect.
D) It means the theatrical effect.
3. What does them refer to?
A) Clinical trials.
B) The bodys major hormones.
C) Expectations about health or disease.
D) Many subconscious ways.
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