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': 'What is the new name for mental retardation according to DSM - V? \nSelect and explain. \nA. Mental handicap, B. Intellectual disability, C. Subnormal intelligence, D. Lunatic person', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Mental retardation is termed as "Intellectual disability" under DSM - V.', 'role': 'assistant'}]