Which of the following items is not used in Local Area Networks (LANs)

Answer: Option B

computers, printers, and cables. These components are essential for creating and maintaining the network. Computers are the devices that connect to the network, printers may be shared resources within the network, and cables are used to physically connect these devices.

A modem, however, is primarily used to connect a network to an external service provider, such as an Internet Service Provider (ISP). It modulates and demodulates signals for internet connectivity. While modems are commonly used in wide area networks (WANs) or for internet access, they are not a standard component of a LAN, which is designed for local communication and resource sharing within a limited area.