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: Surgery
Hyperesthesia over the region of 12th is called 
Select and explain. 
A. Murphy’s sign, B. Boa's sign, C. Moynihan's sign, D. Aaron's sign
B: Boa's sign
Answer: B: Boa's sign 
Explanation: Boa's sign is present in acute cholecystitis