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: Unknown
[{'content': 'Six years old child with obstructed hernia on exploration bowel was found gangrenous-True about anastomosis: \nSelect and explain. \nA. Should be done by continuous layers as it takes less time, B. Done with catgut, C. should be done by using single layer seromuscular lambert sutures, D. Single layer taking submucosa.', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ref. API Textbook of Medicine. Pg. 210\nSingle layer taking submucosa.', 'role': 'assistant'}]