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
What is the new name for mental retardation according to DSM - V? 
Select and explain. 
A. Mental handicap, B. Intellectual disability, C. Subnormal intelligence, D. Lunatic person
B: Intellectual disability
Answer: B: Intellectual disability 
Explanation: Mental retardation is termed as "Intellectual disability" under DSM - V.