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
Bactericidal drugs in ATT are : a) Pyrazinamide b) Ethambutol c) PAS d) Rifampicin e) Isoniazid 
Select and explain. 
A. ace, B. abc, C. bce, D. ade
D: ade
Answer: D: ade 
Explanation: None