Radio Ray Which Of The Following Statements Is True About The Speeds Of Gamma Rays And Radio Waves In A Vacuum?

Which of the following statements is true about the speeds of gamma rays and radio waves in a vacuum? - radio ray

A. Gamma radiation back faster than radio waves.
B. radio emission back faster than that of gamma rays.
C. Gamma-rays and radio waves with the same speed in vacuum.
D. The proportion of gamma rays and radio waves in vacuum, depends on their frequencies.