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
Acrophobia is: 
Select and explain. 
A. Getting caught in places from where escape would be difficult, B. Fear of heights, C. Fear of animals, D. Fear of closed spaces
B: Fear of heights
Answer: B: Fear of heights 
Explanation: B i.e. Fear of heights