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: Pathology
[{'content': 'Low serum hepatoglobin in hemolysis is masked by \nSelect and explain. \nA. Pregnancy, B. Liver Disease, C. Bile duct Obstruction, D. Malnutrition', 'role': 'user'}, {'content': 'Answer: C \nExplanation: In case of Bile duct obstruction, serum haptoglobin not excreted properly, so their levels falsely normal even in Intravascular hemolysis.', 'role': 'assistant'}]