The characteristics of two methods of heat transfer are listed below: method a: does not transfer heat through solids and requires a medium for heat transfer method b: requires a material medium and transfers heat from the hot end to the cold end of a solid which statement is correct? method a is convection and method b is radiation. method a is radiation and method b is convection. method a is radiation and method b is conduction. method a is convection and method b is conduction.