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: Pediatrics
[{'content': "Most common malignancy in children is – \nSelect and explain. \nA. Leukemia, B. Lymphoma, C. Wilm's tumor, D. Neuroblastoma", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Most common childhood tumor\xa0→\xa0Leukaemia\nMost common childhood leukemia\xa0→\xa0ALL\nMost common solid tumor of childhood →\xa0Brain tumor\nMost common tumor in infancy\xa0→\xa0Neuroblastoma\nMost common abdominal tumor in child\xa0→\xa0Neuroblastoma', 'role': 'assistant'}]