You find that the user account “user1” you just compromised might be permitted to execute privileged commands on the system using sudo. After you suspend command recording in your terminal window, you execute the sudo -l command and are not prompted for a password. To your surprise, the account can execute all commands on the operating system and you still are not prompted for a password. Which setting in the /etc/sudoers file would allow the user to execute commands without a password?