This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General Pharmacology, Subject name: Pharmacology
Which of the following is enzyme inducer? 
Select and explain. 
A. Erythromycin, B. Isoniazid, C. Rifampicin, D. Cimetidine
C: Rifampicin
Answer: C: Rifampicin 
Explanation: Ans. C. RifampicinDugs which act as enzyme inducera. G- Griseofulvinb. P- phenytoinc. R-Rifampicind. S-smokinge. Cell- carbamazepinef. Phone- phenobarbitone.