This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Schizophreniform Disorder, Subject name: Psychiatry
[{'content': 'A child with schizophrenia was on medications. Suddenly he developed neck stiffness and spasm. Best treatment of such a case is? \nSelect and explain. \nA. Benzatropine, B. Lorazepam, C. Diphenhydramine, D. Propranolol', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) BenzatropineRef. Handbook of psychiatric drug therapy by Lawrence A. Labbate, Maurizio favay Jerrold F. Rosenbaum, George W. Arana 6th ed. /37y Medical toxicology edited by Richard C. Dart 3th ed. /869)', 'role': 'assistant'}]