This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
[{'content': 'Van den Berg test for \nSelect and explain. \nA. Direct bilirubin, B. indirect bilirubin, C. copropoolphyrin, D. Total bilirubin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: ref : harissons 21st ed', 'role': 'assistant'}]