This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Organic Mental Disorders, Subject name: Psychiatry
The psychiatric disorder most commonly associated with myxedema: 
Select and explain. 
A. Depression, B. Mania, C. Phobia, D. Psychosis
A: Depression
Answer: A: Depression 
Explanation: The most common psychiatric disorder associated with hypothyroidism is cognitive slowing followed by depression.