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
Maximum	allowable dose	of 2%	lidocaine with
1:100000 epinephrine for a child of 40 lbs is: 
Select and explain. 
A. 60mg, B. 120mg, C. 180mg, D. 240mg
B: 120mg
Answer: B: 120mg 
Explanation: None