This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Leukemias and Lymphoma, Subject name: Pediatrics
[{'content': 'Most common GI malignancy of childhood - \nSelect and explain. \nA. Adenocarcinoma, B. Lymphoma, C. Sarcoma, D. carcinoid', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Lymphoma Over all hemangioma is most common Tumor in infant.Hemangioma is usually benign in Nature.Leukemia is most common malignancy in pediatric age gyp.2nd most common is CNS Tumor= Lymphoma is the most common malignancy of the gastrointestinal tract in children. About 30% of children with non-Hodgkin lymphoma present with abdominal tumors.", 'role': 'assistant'}]