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: Pediatrics
[{'content': 'A child is suffering from dry skin and is mentally retarded-diagnosis ? \nSelect and explain. \nA. Vit A deficiency, B. Crebral palsy, C. Hypothyroidism, D. All above', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Hypothyroidism", 'role': 'assistant'}]