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
A patient with obsessive - compulsive neurosis is more likely to develop : 
Select and explain. 
A. Depression, B. Schizophrenia, C. Delusional disorders, D. Conversion syndrome
A: Depression
Answer: A: Depression 
Explanation: About one - third of patients with OCD have major depressive disorder and suicide is a risk for all patients with OCD.