This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
[{'content': 'All of the following are psychedelic drugs except? \nSelect and explain. \nA. Lysergic acid diethylamide, B. Phencyclidine, C. Cocaine, D. Mescaline', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Hallucinogens (Psychotomimetics, psychedelics, psychotogens) are drugs which alter mood, behaviour, thought and perception in a manner similar to that seen in psychosis. These are as: Lysergic acid diethylamide (LSD) Psilocybin Harmine Bufotenin Mescaline (Phenyl alkyl amines) Phencyclidine Lysergic acid amide', 'role': 'assistant'}]