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 common site of Garre’s osteomyelitis is: \nSelect and explain. \nA. Mandibular molar, B. Mandibular canine, C. Maxillary molar, D. Maxillary canine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Clinical features\n\nOccurs in young adults of age 25 years or less.\nMost frequently involved area is anterior surface of tibia.\nIn jaws, occurs in mandible, in molar and bicuspid region.\nRadiographic picture—Classical onion skin appearance due to cortical layer duplication.', 'role': 'assistant'}]