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
All of the following are risk factors for atherosclerosis except: 
Select and explain. 
A. Increased waist-hip ratio, B. Hyperhomocysteinemia, C. Decreased fibrinogen levels, D. Decreased HDL levels
C: Decreased fibrinogen levels
Answer: C: Decreased fibrinogen levels 
Explanation: None