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': 'Best indicator for coronary aery disease ? \nSelect and explain. \nA. HDL, B. LDL, C. VLDL, D. Chlomicron', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e. LDL", 'role': 'assistant'}]