This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Anatomy
[{'content': 'The following is true of placebo \nSelect and explain. \nA. Placebo is a dummy medication, B. Placebo in the ine material added to the drug for making tablets, C. Placebos do not produce any effect, D. All patient respond to Placebo', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref-KDT 6/e p65 Placebo plays a very impoant role in the clinical trials. To know, whether the effect is produced by a drug or it is just by chance, Ada me medication known as placebo is given to the control group, placebo may or may not produce an effect in a subject', 'role': 'assistant'}]