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: Pathology
[{'content': 'True about early gastric cancer is \nSelect and explain. \nA. Limited to serosa, B. Chemotherapy, C. Lymph node metastasis present, D. Limited to mucosa and submucosa', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Based on histological features, WHO classified gastric tumors into : Early gastric carcinoma is defined as a cancer limited to the mucosa and submucosa with or wthout perigastric lymph node metastasis Advanced gastric carcinoma: extends below the submucosa into the muscular wall. GENERAL AND SYSTEMIC PATHOLOGY RAMDAS NAYAK FIRST EDITION PGNO.385 IMAGE REF: GENERAL AND SYSTEMIC PATHOLOGY RAMDAS NAYAK SECOND EDITION FIG. 18.8 PAGE NO: 489', 'role': 'assistant'}]