This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'Major psychosis is- \nSelect and explain. \nA. Neurosis, B. Dementia, C. Reactive depression, D. Endogenous depression', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Endogenous depression", 'role': 'assistant'}]