Which part of the electromagnetic spectrum is nearest to X-rays? microwaves infrared light gamma rays radio waves

The correct answer to the following question will be Option A (Microwaves).

Explanation:

This tends to be a source of radiation, including some signals, infrared radiation, x-rays as well as gamma.  This appears to have a diverse variety of uses, involving communications, radar, and scheduling, but best known by most individual people. Sections of society used handheld devices, including tablets, as well as WiFi.

The other given choices are not related to the given circumstances. So that option A seems to be the appropriate one.

The velocity would be 2