A 50-year-old male, working as a hotel cook, has four dependent family members. He has been diagnosed with an early stage squamous cell cancer of the anal canal. He has more than 60% chances of cure. The best treatment option is
A combination of chemotherapy and radiotherapy called as 'chemoradiation' is the preferred initial therapy for all anal canal tumors
Abdomino-perineal resection
Combined surgery and radiotherapy
Combined chemotherapy and radiotherapy
Chemotherapy alone