The contents of /etc/pam.d/su file on a system are shown below. [root@server1 ~]# cat /etc/pam.d/su #%PAM-1.0 auth sufficient /lib/security/$ISA/pam_rootok.so auth sufficient /lib/security/$ISA…

The contents of /etc/pam.d/su file on a system are shown below. [root@server1 ~]# cat /etc/pam.d/su #%PAM-1.0 auth sufficient /lib/security/$ISA/pam_rootok.so auth sufficient /lib/security/$ISA pam_wheel.so trust use_uid #auth required /lib/security/$ISA pam_wheel.so use_uid auth required /lib/security/$ISA/pam_stack.so service=system-auth account required /lib/security/$ISA/pam_stack.so service=system-auth password required /lib/security/$ISA/pam_stack.so service=system-auth session required /lib/security/$ISA/pam_selinux.so close session required /lib/security/$ISA/pam_stack.so service=system-auth session required /lib/security/$ISA/pam_selinux.so open session optional /lib/security/$ISA/pam_xauth.so Which statement is true?