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: Dental
Which of the local anesthetic agent can be given in liver failure cases? 
Select and explain. 
A. Articaine, B. Lignocaine, C. Bupivacaine, D. Benzocaine
D: Benzocaine
Answer: D: Benzocaine 
Explanation: Benzocaine can be given in liver failure patients since it is ester type, and can be metabolized by cholinesterase in plasma.