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: Psychiatry
[{'content': 'An obsessive compulsive neurosis patient is likely to develop \nSelect and explain. \nA. Hallucination, B. Depression, C. Delusion, D. Schizophrenia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. DepressionDepression is most common psychological feature in: * OCN leads to secondary depressionQAIDSQ * Pseudo dementia & Nihilistic delusionsPost paumQ/ Post myocardial infarctionQ are seen in depressionQPost surgeryMyxedema', 'role': 'assistant'}]