Which three statements are true concerning the use of the grub menu in Oracle Linux?
A.
All changes made using the grub editor at boot time are saved by default to
/boot/grub/grub, conf.
B.
Additional parameters may be passed to the selected kernel.
C.
The initrd directive may not be changed.
D.
Existing kernel parameters may be changed.
E.
Some of the GRUB command-line functions may be password protected.