Question

PLEASE HELP FAST??!!
Which statement is true about the electromagnetic spectrum?
A. The visible Spectrum includes radio waves, light and gamma rays.
B. Same wave lengths of light corresponding to different colors.
C. It contains a spectrum of visible light plus a wide array of nonvisible forms of radiation.
D. The waves travel at a speed of 2.998 *10^5 m/s

Answer 1

C. It contains a spectrum of visible light plus a wide array of nonvisible forms of radiation.
https://en.wikipedia.org/wiki/Electromagnetic_spectrum