Which statement best describes the role of an IP address in a network?

An IP address serves a fundamental role in the functionality of a network by identifying devices on a TCP/IP network. Each device connected to a network must have a unique IP address that distinguishes it from others, enabling accurate communication and data transmission. This identification allows devices to send and receive information efficiently, much like a postal address allows for mail delivery. The IP address helps routers and switches in the network to route data packets to the correct destination, ensuring that the information reaches the intended device without confusion or delay. This identification function is crucial for both local networks and the internet, where millions of devices need to communicate seamlessly.