The frequency of visible light is about $5.0 \times 10^{14}\,\text{Hz}$. M and N are two additional forms of electromagnetic radiation. For M, the frequency is $5.0 \times 10^{6}\,\text{Hz}$. For N, the frequency is $5.0 \times 10^{15}\,\text{Hz}$. Which forms of radiation are M and N?
- AM: radio waves, N: infrared
- BM: radio waves, N: ultraviolet
- CM: ultraviolet, N: X-rays
- DM: X-rays, N: infrared