This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Drugs & Other Biological Methods of Treatment, Subject name: Psychiatry
Bright light therapy is used for? 
Select and explain. 
A. Seasonal affective disorder, B. Schizophrenia, C. Adjustment disorder, D. Anxiety
A: Seasonal affective disorder
Answer: A: Seasonal affective disorder 
Explanation: Ans. (a) Seasonal affective disorderRef: Principles and Practice of Psychopharmacotherapy by Philip G. Janicaky Stephen R. Marder, Mani N. Pavuluri p.244