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
[{'content': 'The protein which has structural homology with plasminogen and is responsible for myocardial infarction and stroke - \nSelect and explain. \nA. HDL, B. LP(a), C. LDL, D. Homocysteine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Answer- B. LP(a)Lp(a) has structural homology to plasminogen because of apoprotein(a) of Lp(a).', 'role': 'assistant'}]