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': 'Complications of lobar pneumonia does not include \nSelect and explain. \nA. Lung abscess, B. Amyloidosis, C. Suppurative arthritis, D. Infective endocarditis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]