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: Pathology
[{'content': 'Most accepted theory of atherosclerosis is - \nSelect and explain. \nA. Lipid infiltration of intima, B. Reaction to endothelial injury, C. Due to smoking, D. Hyperlipidemia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]