Which of the following correctly describes the function of the RJ-11 connector?

The RJ-11 connector is specifically designed for connecting standard telephone lines and DSL modems. This connector typically features four or six pins, but commonly uses only two pairs of wires, allowing it to facilitate voice communication and internet access through DSL services. It is a crucial component in residential and commercial telephone systems, providing the necessary interface for both incoming and outgoing telephone calls, as well as for digital subscriber line connections that allow for internet service.

In contrast, the other options refer to different types of connectors and functions: some connect computers to display devices, while others are designed for audio and video connections or for local area network (LAN) configurations. Therefore, option B accurately captures the unique purpose of the RJ-11 connector.