<prompt> Most common tumor in children is -LeukemiaLymphomaWilms tumorNeuroblastoma  <response>: Ans. is a i.e., Leukemias o Most common childhood tumor -- Leumemia o Most common childhood leukemia -- ALL o Most common solid tumor of childhood -- Brain tumor o Most common tumor in infancy --- Neuroblastoma o Most common abdominal tumor in child --- Neuroblastoma 