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': 'Test used for cholesterol is \nSelect and explain. \nA. Salkowski test, B. Schilling test, C. Zellwenger’s test, D. Brodie’s test', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]