What is radiation? a Transfer of heat through objects touching the source

b Transfer of heat through direct physical contact

c Transfer of heat through electromagnetic waves

d Transfer of heat through the movement of particles

C.

Explanation:

Radiation is an invisible force that can be deadly or helpful. So the only way it can move is by another invisible force.

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.