This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
[{'content': 'All the following indicates early gastric cancer except: \nSelect and explain. \nA. Involvement of mucosa, B. Involvement of mucosa and submucosa, C. Involvement of mucosa, submucosa and muscularis, D. Involvement of mucosa, submucosa and adjacent lymph nodes', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Early Gastric Cancer: Adenocarcinoma limited to the mucosa and submucosa of the stomach, regardless of LN status Approx. 10% of patients will have LN metastasis Cancer of the lesser curve is more common than cancer of the greater curvature Treatment: Treatment options: Endoscopic mucosal resection, limited surgical resection or gastrectomy Overall curative rate with adequate gastric resection and lymphadenectomy is 95% Best prognosis Ref: Sabiston 20th edition Pgno: 1222', 'role': 'assistant'}]