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
Treatment of seasonal affective disorder 
Select and explain. 
A. SSRIs, B. ECT, C. Bright light therapy, D. Sensate focus
C: Bright light therapy
Answer: C: Bright light therapy 
Explanation: Seasonal affective disorder is mood disorder with seasonal pattern treated with Bright light therapy.