The correct answer is: B. Modem
A modem is a device that modulates and demodulates signals. It is used to convert digital signals to analog signals and vice versa. This is necessary for communication over analog transmission media, such as telephone lines.
A local area network (LAN) is a computer network that connects computers and other devices within a limited area such as a home, office, or school. LANs are typically used to share resources such as files, printers, and internet access.
Baseband networking is a type of network that uses a single frequency to transmit data. This is in contrast to broadband networking, which uses multiple frequencies to transmit data. Baseband networking is typically used for low-speed applications such as dial-up internet access.
Broadband networking is a type of network that uses multiple frequencies to transmit data. This allows for higher speeds than baseband networking. Broadband networking is typically used for high-speed applications such as cable internet access.
E. None of the above is not the correct answer.