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': 'Most important in causing coronary artery disease (CAD) is \nSelect and explain. \nA. HDL, B. LDL, C. VLDL, D. Triglycerides', 'role': 'user'}, {'content': "Answer: B \nExplanation: LDL\n\nLDL concentration in blood has a positive correlation with the incidence of cardiovascular diseases.\nLDL-cholesterol is deposited in vessels and promotes atherosclerosis.\nTherefore, LDL is called 'bad cholesterol' or 'lethally dangerous lipoprotein (LDL)'.", 'role': 'assistant'}]