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: Medicine
Best indicator of developing cardiovascular disease is 
Select and explain. 
A. LDL cholesterol level more than 120 mg/dl, B. History of salt intake of more than 6 gm/day, C. LDL/HDL ratio, D. All of the above
C: LDL/HDL ratio
Answer: C: LDL/HDL ratio 
Explanation: None