Which of the following statements are true regarding VirtualBox?

A.
It supports only Linux as a guest operating system.

B.
It is available for Linux only.

C.
It provides both a graphical user interface and command line tools to administer virtual machines.

D.
It requires dedicated shared storage as it cannot store virtual machine disk images locally on block devices of the virtualization host.

E.
It is a special kernel booted before the first regular operating system.