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
LA causing cutaneous vasoconstriction: 
Select and explain. 
A. Lidocaine., B. Ropivacaine., C. Mepivacaine., D. Procaine.
B: Ropivacaine.
Answer: B: Ropivacaine. 
Explanation: None