________ is a mode of communication in itself, and it also regulates the use of other means of communication.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. Satellite.
A satellite is a mode of communication in itself, as it directly transmits and receives signals for various purposes like television broadcasting, GPS, and satellite phones. Crucially, it also regulates and enables the use of other means of communication. By relaying signals over vast distances, satellites underpin global telecommunication networks, facilitate internet access in remote areas, and enable the efficient functioning of mobile phone and radio systems, effectively serving as a central hub for modern connectivity.