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
I.V. diazepam causes following in a patient on dental chair: 
Select and explain. 
A. Tinel's sign, B. Virrel's sign, C. Batters sign, D. Bell's sign
B: Virrel's sign
Answer: B: Virrel's sign 
Explanation: None