12 POINTS PLZ help

How does radiation differ from conduction?

 A. Radiation can move through empty space to transfer heat; conduction cannot. 
 B. Radiation needs a medium in order for heat to transfer; conduction does not.
 
 C.Radiation requires objects to have direct physical contact; conduction does not.
 
 D.Radiation transmits heat by circulating particles in an object; conduction does not.


First one to answer and it is right will get brainiest