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: Orthopaedics
[{'content': 'Most common site of Actinomycosis amongst the following is - \nSelect and explain. \nA. Tibia, B. Ribs, C. Mandible, D. Femur', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Most common type of actinomycosis is oro-cervico-facial.\nAngle of the jaw is the most common site.', 'role': 'assistant'}]