which answer best describes the drivers that are used in dom0 and the guest to communicate block I/O requests?

In hardware virtualized environment, which answer best describes the drivers that are used in
dom0 and the guest to communicate block I/O requests?

A.
QEMU emulation is used in dom0, and a blkfront driver is used in the guest.

B.
A native device driver is used in dom0, and QEMU emulation is used in the guest.

C.
A blkfront driver is used in dom0, and a blkback driver is used in the guest

D.
QEMU emulation is used in dom0, and a native device driver is used in the guest.

E.
Native drivers are used in both dom0, and the guest.

Explanation: