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
Which of the following local anesthetic is a vasoconstrictor 
Select and explain. 
A. Lidocaine, B. Procaine, C. Bupivacaine, D. Ropivacaine
D: Ropivacaine
Answer: D: Ropivacaine 
Explanation: None