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
Which of the following drug develops the resistance by inactivating enzymes: 
Select and explain. 
A. Aminoglycosides., B. Beta lactams., C. Chloramphenicol., D. All of the above.
D: All of the above.
Answer: D: All of the above. 
Explanation: Drug resistance by Inactivating  enzymes: 
A – Aminoglycosides 
B – Beta lactams 
C – Chloramphenicol