Which command can be used to create a new command that will monitor the contents of auth. log as they get added to the file? a. alias showauth=’tail -f /var/log/auth. log’ b. ln showauth=’tail -f /var/log/auth. log’ c. new showauth as ‘cat -f /var/log/auth. log’ d. create showauth=’tail -f /var/log/auth. log’