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
Bacitracin is a 
Select and explain. 
A. Oral antibiotic, B. Topical antibiotic, C. Parenteral antibiotic, D. All
B: Topical antibiotic
Answer: B: Topical antibiotic 
Explanation: None