This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S., Subject name: Pediatrics
MC malignancy in children is: 
Select and explain. 
A. Retinoblastoma, B. Leukemia, C. Wilms tumor, D. Neuroblastoma
B: Leukemia
Answer: B: Leukemia 
Explanation: b. Leukemia(Ref: Nelson 20/e p 2416)Most frequent childhood cancers are: (in order of decreasing frequency)Leukemia (Most common is ALL)Brain TumorsNeuroblastomaWilms tumor