Which option lists the three types of radios used?

Which option lists the three types of radios used?

• A. Walkie-talkie; Satellite phone; Desktop radio
• B. Pager; Desk radio; Mobile radio
• C. Portable radio; Radio base station; Mobile radio affixed in vehicles
• D. Phone; Laptop; Tablet

Answer: (C)

Communications in many workplaces are organized around three main radio roles: a portable handheld unit for individual personnel, a fixed base station at a central location for dispatch and coordination, and a mobile radio installed in vehicles to stay connected while on the move. This combination covers personal access, centralized control, and in-vehicle communication, which is why listing portable radio, radio base station, and mobile radio affixed in vehicles matches the typical three-type setup.

Other options mix devices that aren’t standard three categories for workplace radios. A walkie-talkie is a portable radio, but a satellite phone isn’t a conventional radio type in this context and desktop radio isn’t a common category. Another option includes a pager, which is for receiving messages rather than two-way voice communication, so it doesn’t fit the three-type framework. Finally, phones, laptops, and tablets aren’t radios in the same sense, since they rely on different communication technologies.