What are three methods to sterilize a bed sheet contaminated with Mycobacterium leprae?
1) Washing the bed sheet with hot water and detergent
2) Using a disinfectant spray on the bed sheet
3) Autoclaving the bed sheet at high temperature and pressure
4) Exposing the bed sheet to ultraviolet (UV) light
5) Placing the bed sheet in a sealed bag and leaving it for several days
6) None of the above