The program processes the command line arguments. The arguments indicate which signals to catch:. A. The program emits a status line that includes its PID to stderr. B. The program registers a handler for each argument (see signal (2)).C. The program pauses itself continually (see pause (2)).D. The handler registers itself again (read about unreliable signals).E. The handler emits a line to stdout that indicates the signal caught, and the time it was caught (see time (2)).F. The program gracefully terminates after receiving three successive SIGTERM signals. G. The program emits a final status message to stderr that indicates the number of signals caught