You are booting a Linux system and are at the Grand Unified Bootloader (GRUB) menu. The
default runlevel specified in the /etc/inittab file is 5. You pass S as the kernel parameter to the
GRUB. What is the effect of this on the system?
A.
init runs /sbin/sulogin when you enter the runlevel S.
B.
init takes the system torunlevel 1 and provides the root shell without requiring the password.
C.
The system does not have any effect and boots normally into the defaultrunlevel specified in
/etc/inittab
D.
init takes the system torunlevel 1, prompts for root’s password and logs in only after the correct
password is entered.