What should you use to inspect the IP address of a Windows operating system PC?

To inspect the IP address of a Windows operating system PC, utilizing IPconfig is the most appropriate choice. IPconfig is a command-line tool that displays the current network configuration for the computer it is run on. This includes essential information such as the IP address, subnet mask, and default gateway for each network interface. When you open the Command Prompt and enter the command "ipconfig," you will receive a detailed output that provides the necessary details about your network connections.

Other choices serve different purposes; Network Utility, for example, is not a standard feature within Windows OS and typically refers to a tool in other operating systems, particularly macOS. ARP is a protocol used to map IP addresses to MAC addresses and is not designed for directly inspecting IP configurations. DHCP Client refers to the service responsible for managing IP address distribution within a network but does not directly display the current IP address settings of the machine like IPconfig does.