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
Major psychosis is- 
Select and explain. 
A. Neurosis, B. Dementia, C. Reactive depression, D. Endogenous depression
D: Endogenous depression
Answer: D: Endogenous depression 
Explanation: Ans. is 'd' i.e., Endogenous depression