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': 'Which of the following is most specific for cholestasis \nSelect and explain. \nA. ALT, B. AST, C. GGT, D. 5I nucleotidase', 'role': 'user'}, {'content': 'Answer: D \nExplanation: It is most specific for cholestasis and cholestatic damage.', 'role': 'assistant'}]