What is the primary use of coaxial cable?

The primary use of coaxial cable is to connect TVs to cable services. Coaxial cable is specifically designed to carry high-frequency signals, such as those used for transmitting television broadcasts. This type of cable consists of a central conductor, an insulating layer, a metallic shield, and an outer insulating layer, which together minimize signal loss and interference. This makes coaxial cable particularly effective for delivering cable television signals and internet services through cable modems.

The other options presented do not align with the primary function of coaxial cable. While coaxial can technically be used for networking purposes, it is not commonly employed in connecting computers to printers or creating VPNs. Wireless connections utilize radio waves and do not rely on coaxial cable. By focusing on its main application in cable service connectivity, it is clear why this is the correct choice.