What does a DSL modem use to send and receive digital data?

A) Copper telephone wiring
B) Cable TV connections
C) A wireless router
D) A network interface card

DSL Modem

A device that connects a computer to the internet through a telephone line using Digital Subscriber Line technology, providing high-speed internet access.

Copper Telephone Wiring

Traditional infrastructure used for telecommunications, employing copper wires to transmit voice and data signals.

Wireless Router

A device that provides wireless internet connectivity to various digital devices within a network by transmitting data over radio waves.