This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Medicine
[{'content': 'Yellowing of the skin occurs in hypothyrodism because of - \nSelect and explain. \nA. Increased bilirubin, B. Increased obolesterol, C. Increased carotene, D. Increased', 'role': 'user'}, {'content': "Answer: C \nExplanation: The yellow tinge to the skin in hypothyroidism is due to carotene accumulation. This is because the conversion of beta-carotene (provitamin A) to 2 molecules of vitamin A (retinol) is accelerated by thyroxine and thus in hypothyroidism there is hyper beta-carotenemia. Reference : page 2291 Harrison's Principles of Internal Medicine 19th edition", 'role': 'assistant'}]