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
[{'content': 'Otto veraguth sign is found in - \nSelect and explain. \nA. Mania, B. Anxiety, C. OCD, D. Depression', 'role': 'user'}, {'content': "Answer: D \nExplanation: A common physical sign associated with depression is otto-veraguth's fold in upper eyelid.", 'role': 'assistant'}]