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': "All the following statements are true regarding cervicofacial actinomycosis, EXCEPT \nSelect and explain. \nA. 10-20% of actinomycosis cases occur in cervicofacial region., B. The discharging pus contains visible 'sulphur granules', C. Cultures on blood agar often produce a typical 'molar tooth' morphology, D. There is usually history of trauma such as tooth extraction or a blow to the jaw", 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]