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
Air forced, or sucked in to the connective tissue and facial spaces are known as? 
Select and explain. 
A. Empyema, B. Asphyxia, C. Emphysema, D. Aspiration
C: Emphysema
Answer: C: Emphysema 
Explanation: None