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': "A 30year old patient with radiographic appearance of endosteal bone formation, sclerosed bone is likely to be suffered from: \nSelect and explain. \nA. Garre's Osteomyelitis., B. Chronic focal sclerosing Osteomyelitis., C. Acute Osteomyelitis., D. Chronic Osteomyelitis.", 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]