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': 'Air forced, or sucked in to the connective tissue and facial spaces are known as? \nSelect and explain. \nA. Empyema, B. Asphyxia, C. Emphysema, D. Aspiration', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]