The correct answer is: A. -4

The ps command is used to list information about processes running on a system. The -4 option tells ps to print the entire command line of the process being run.

The other options are:

  • -1: Print the process ID (PID) of the process.
  • -2: Print the process state.
  • #NAME?: Print the process name if it is not in the process table.

I hope this helps! Let me know if you have any other questions.