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
Antacid interfere with absorption of all of the following except : 
Select and explain. 
A. Ketoconazole, B. Azithromycin, C. Oxytetracycline, D. Ofloxacin
B: Azithromycin
Answer: B: Azithromycin 
Explanation: None