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
What is false about mafenide acetate? 
Select and explain. 
A. Painful, B. Deeper penetration, C. Metabolic acidosis, D. Immunodulatory action
D: Immunodulatory action
Answer: D: Immunodulatory action 
Explanation: Cerium nitrate has Immunodulatory action.