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 anaesthetic is active topically? 
Select and explain. 
A. Lidocaine and Benzocaine, B. Lidocaine and mepivacaine, C. Mepivacaine and benzocaine, D. Prilocaine and mepivacaine
A: Lidocaine and Benzocaine
Answer: A: Lidocaine and Benzocaine 
Explanation: None