Radioresistant tumour is
Highly resistantHighly sensitiveMaligant melanomaOsteosarcomaSeminomaMultiple myelomaEwings sarcomaWilms tumourLymphoma(Ref: Harrison's principals of Internal medicine, 17th Ed page 612)
Ewing's sarcoma
Osteosarcoma
Retinoblastoma
Neuroblastoma
All India exam