A.) more energy and shorter wavelengths.
Step-by-step explanation:
Radio waves and ultraviolet rays are both part of the electromagnetic spectrum. The energy of a wave in the electromagnetic spectrum depends on the frequency of said wave, and the frequency of a wave depends on the wavelength. Shorter wavelength = higher frequency = more energy. Longer wavelength = lower frequency = less energy.
Radio waves have a longer wavelength when compared to ultraviolet rays, so therefore they have a lower frequency and less energy.
Sorry, I suck at explaining things, so I hope I made at least somewhat understandable.