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: Dental
Learning disability is otherwise called as 
Select and explain. 
A. Infantile psychosis, B. Minimal brain dysfunction, C. Childhood schizophrenia, D. Attention deficit disorder
B: Minimal brain dysfunction
Answer: B: Minimal brain dysfunction 
Explanation: None