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
Most important in causing coronary artery disease (CAD) is 
Select and explain. 
A. HDL, B. LDL, C. VLDL, D. Triglycerides
B: LDL
Answer: B: LDL 
Explanation: LDL

LDL concentration in blood has a positive correlation with the incidence of cardiovascular diseases.
LDL-cholesterol is deposited in vessels and promotes atherosclerosis.
Therefore, LDL is called 'bad cholesterol' or 'lethally dangerous lipoprotein (LDL)'.