This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Medicine
[{'content': 'The amino acid which is associated with atherosclerosis is \nSelect and explain. \nA. Lysine, B. Homocysteine, C. Cysteine, D. Alanine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ref Harrison 19 th ed pg 1579 There is a strong positive correlation between atherosclerosis and circulating levels of homocysteine.', 'role': 'assistant'}]