This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anti-Neoplastic Agents, Subject name: Pharmacology
Mode of excretion of cyclophosphamide is - 
Select and explain. 
A. Lung, B. Liver, C. Kidney, D. Skin
C: Kidney
Answer: C: Kidney 
Explanation: Ans. is 'c' i.e., Kidney [Ref: style="font-size: 1.04761904761905em; font-family: Times New Roman, Times, serif; margin: 0 0 8pt 8px; text-indent: 0; text-align: left">o Cyclophosphomide is primarily metabolized (80%) and metabolites are excerted in urine.o 10 to 20% is excreted unchanged in urine and 4% is excreted in bile.