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: Surgery
[{'content': 'Which of the following conditions presents with a palpable crepitus? \nSelect and explain. \nA. Anaerobic infections, B. Streptococcal infections, C. Surgical emphysema, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]