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: Anaesthesia
Vasoconstriction in blood vessels is seen with: 
Select and explain. 
A. Cocaine, B. Lignocaine, C. Prilocaine, D. Bupivacaine
A: Cocaine
Answer: A: Cocaine 
Explanation: Cocaine