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
Of the following Local anesthetics, which has
intrinsic vasoconstrictive action? 
Select and explain. 
A. Cocaine, B. Procaine, C. Xylocaine, D. Bupivacaine
A: Cocaine
Answer: A: Cocaine 
Explanation: None