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: Pharmacology
All of the following are intravenous anesthetic induction agents except : 
Select and explain. 
A. Thiopentone sodium, B. Ketamine, C. Etomidate, D. Bupivacaine
D: Bupivacaine
Answer: D: Bupivacaine 
Explanation: None