<prompt> Radioresistant tumour isEwings sarcomaOsteosarcomaRetinoblastomaNeuroblastoma  <response>: Highly resistantHighly sensitiveMaligant melanomaOsteosarcomaSeminomaMultiple myelomaEwings sarcomaWilms tumourLymphomaRef: Harrisons principals of Internal medicine, 17th Ed page 612 