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: Biochemistry
[{'content': "Which of the following test is sensitive for ketones in urine? \nSelect and explain. \nA. Benedict test, B. Rothera's test, C. Nitroprusside tube test, D. All of the above", 'role': 'user'}, {'content': "Answer: C \nExplanation: Nitroprusside tube test is also known as modified Rothera's test.", 'role': 'assistant'}]