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: Microbiology
[{'content': 'Actinomycosis most common site- \nSelect and explain. \nA. Cervicofacial, B. Thoracis, C. Abdomen, D. Brain', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Cervicofacial Oral-cervicofacial type is the most common form of actinomycosis.", 'role': 'assistant'}]