Each network adapter has a unique physical address called a(n) ________ that identifies it.

A) IP address
B) proxy
C) MAC address
D) dotted quad

MAC Address

A media access control address is a unique identifier assigned to network interfaces for communications at the data link layer of a network segment.

Physical Address

In computer networking, it refers to the unique identifier (MAC address) assigned to every network interface for communication at the physical layer.

IP Address

Internet Protocol Address, a unique string of numbers separated by periods that identifies each computer using the Internet Protocol to communicate over a network.