This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemotherapy, Subject name: Pharmacology
Anticancer macrolide is 
Select and explain. 
A. Sirolimus, B. Cycloserine, C. Roxythromycin, D. Azithromycin
A: Sirolimus
Answer: A: Sirolimus 
Explanation: Tacrolimus, sirolimus, everolimus are macrocyclic lactones or macrolides.Ref: KK Sharma 2nd ed. Pg: 885