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': 'Obsessive Compulsive Neurosis is likely to progress into \nSelect and explain. \nA. Paronia, B. Edogenous Depression, C. Secondary Depression, D. Dissociation', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Secondary depression In OCN failure to control ego-alien impulse leads to development of depression, as the patient is unable to control the behaviour about which he knows that it is irrational & absurd.', 'role': 'assistant'}]