What is oVirt?

A.
An extension to the Linux Kernel used to provide container virtualization similar to LXC and OpenVZ.

B.
A library that provides access to several different virtualization technologies in a common manner.

C.
A comprehensive management infrastructure for Linux-based virtualization.

D.
An approach used to eliminate the need for virtualization called Zero-Virt.

E.
A Linux-based hypervisor similar to KVM and Xen.