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: Medicine
The commonest side effect of cisplatinum in a patient using it for esophageal carcinoma is 
Select and explain. 
A. Acute tubular necrosis, B. Thrombocytopenia, C. Hepatic failure, D. Cardiomyopathy
A: Acute tubular necrosis
Answer: A: Acute tubular necrosis 
Explanation: None