This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abnormalities of Development, Subject name: Pediatrics
[{'content': "The new name for 'mental retardation' is: \nSelect and explain. \nA. Mental block, B. Intelligence deficit, C. Intellectual disability, D. Mental disability", 'role': 'user'}, {'content': "Answer: C \nExplanation: The new name for 'mental retardation' is: Intellectual disability", 'role': 'assistant'}]