This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anesthesia Machine, Subject name: Anaesthesia
[{'content': 'Epidural analgesia is suitable for \nSelect and explain. \nA. Rib fracture, B. Lower abdominal Surgery, C. Thoracotomy, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Epidural is very suitable as independent anaesthesia technique and as accompanying technique with general anaesthesia. thoracic epidural for Thoracic surgery , rib fracture Lumbar Epidural for upper and lower abdominal surgeries.', 'role': 'assistant'}]