Which of the following is a characteristic of a Wireless LAN?

A Wireless LAN (WLAN) is designed specifically for connecting devices within a limited area, such as a home, office, or campus, using wireless signals. This characteristic allows devices to communicate without the need for physical connections, providing greater flexibility and mobility for users. By using radio waves, WLANs enable devices like laptops, smartphones, and tablets to connect to the network from various locations within reach of the signal.

The other choices focus on aspects that do not accurately describe a WLAN. For instance, physical cables are essential for wired LANs, high-speed access over telephone lines relates to traditional DSL internet connections rather than wireless technology, and cellular data transmission typically pertains to mobile networks rather than a localized wireless network like a WLAN. Hence, the ability of WLANs to connect devices wirelessly is a defining and unique characteristic of this technology.