Which command will display running process information in real time?

The `top` command is a standard Linux utility that displays a continuously refreshing list of running processes, including CPU usage, memory consumption, PID, and process state. It updates in real time (by default every 3 seconds), making it the correct tool for live process monitoring. No other option in this list is a valid Linux command that provides real-time process data.

`show current` is not a valid Linux command - it is associated with Cisco IOS CLI syntax, not Linux process management.

`ps` shows a static snapshot of processes at a single point in time, not a real-time view, and `current` is not a valid option for `ps`.

`process` is not a standard Linux command and does not exist as a built-in utility for viewing running processes.