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': 'Early gastric carcinoma conned to - \nSelect and explain. \nA. Mucosa, B. Mucosa and submucosa, C. Muscularis, mucosa and submucosa, D. Lymph nodes', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Early gastric cancer is denied as adenocarcinoma limited to the mucosa and submucosa of the stomach, regardless of the lymph node status.\nApproximately 10% of patients with early gastric cancer are found to have lymph node metastasis on presentation,\nOverall cure rate with adequate gastric resection and lymphadenectomy is -95%.\nIt has the best prognosis among stomach cancer subtypes.', 'role': 'assistant'}]