<prompt> Seminoma is best treated byRadiation aloneRadiation and surgeryRadiation and chemotherapySurgery alone  <response>: B Radiation and surgery Seminomas are radiosensitive and excellent results have been obtained by irradiating stage 1 stage 2 tumours. If there is no metastasis ,95of patients will be alive 5 years after orchidectomy and radiotherapy or chemotherapy. If there is metastasis survival drops to 75. 