How can gamma radiation BEST be described?
(A) A form of electromagnetic radiation, similar to visible light, whose rays have no mass or electrical charge. (B) Ultraviolet light produced as a byproduct of transmutation. (C) The gain of electrons by an atom or ion, leading to the formation of free radicals and their associated thermodynamic phenomena. (D) A form of endonomic radiation, similar to electronegative charges, whose form changes with time.