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
DSH IV criterion for depression is- 
Select and explain. 
A. 1 week, B. 2 weeks, C. 3 weeks, D. 4 weeks
B: 2 weeks
Answer: B: 2 weeks 
Explanation: For the diagnosis of minor depression 2-4 and for major depression 5 DSM IV symptoms are required for at least for a two week period.