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': 'Catgut suture is derived from which pa of the sheep \nSelect and explain. \nA. Stomach, B. Intestine, C. Muscle, D. Ligaments', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Answer- C. MuscleCatgut suture is prepared from the submucosa of the first one-third of the small intestine of sheep or cow.Chromic catgut is made by treating catgut with cbromic acid salt.', 'role': 'assistant'}]