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
The incidence of allergy to penicillin among various population ranges from 
Select and explain. 
A. 1% to 10%, B. 10% to 20%, C. 20% to 30%, D. 30% to 40%
A: 1% to 10%
Answer: A: 1% to 10% 
Explanation: None