Explanation:

- Radio waves: These are part of the electromagnetic spectrum with frequencies from about 3 kHz to 300 GHz. Their wavelengths range from 1 millimeter to 100 kilometers. Radio waves are used for wireless communication, including radio and television broadcasts.

- Microwaves: The frequency range for microwaves is roughly 300 MHz to 300 GHz, with wavelengths from 1 meter to 1 millimeter. They are used in microwave ovens and radar technology.

- Infrared waves: These have frequencies from 300 GHz to about 400 THz, with wavelengths ranging from 1 millimeter to 700 nanometers. Infrared is commonly used in remote control and thermal imaging.

- Ultraviolet rays: Their frequency range is from about 8 × 10^14 to 3 × 10^16 Hz, with wavelengths from 10 nanometers to 400 nanometers. Ultraviolet rays are responsible for causing sunburn.

Option 3: Radio waves