This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Major Depression, Subject name: Psychiatry
All symptoms are included in diagnostic criteria of major depression, except- 
Select and explain. 
A. Indecisiveness, B. Insomnia, C. Poor concentration, D. None of the above
D: None of the above
Answer: D: None of the above 
Explanation: Ans- D