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
Commonest intra-abdominal tumour below 2 years ? 
Select and explain. 
A. Neuroblastoma, B. Wilm's tomour, C. Hepatoblastoma, D. Lymphomaeoplasia
A: Neuroblastoma
Answer: A: Neuroblastoma 
Explanation: Ans. is 'a' i.e., Neuroblastoma "Of all childhood neoplasms, Neuroblastoma is exceeded in frequency only be leukemia and brain tumors."-CSDT