This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Mood disorders, Subject name: Psychiatry
To diagnose depression, symptoms should last at least for 
Select and explain. 
A. 4 weeks, B. 6 months, C. 2 weeks, D. 6 weeks
C: 2 weeks
Answer: C: 2 weeks 
Explanation: Symptoms should last for at least 2 weeks, for cyclothymia -mild form of depression, symptoms should last for 2 years Ref: Essentials of postgraduate psychiatry By JN Vyas 1st ed Pg 604-607