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
[{'content': 'Mode of excretion of cyclophosphamide is ? \nSelect and explain. \nA. Lung, B. Liver, C. Kidney, D. Skin', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Kidney Cyclophosphomide is primarily metabolized (80%) and metabolites are exceed in urine. 10 to 20% is excreted unchanged in urine and 4% is excreted in bile.", 'role': 'assistant'}]