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': 'Oschner sherren regime is used in management of - \nSelect and explain. \nA. Appendicular abscess, B. Chronic appendicitis, C. Appendicular mass, D. Acute appendcitis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]