Which two are characteristics of block I/O in a fully hardware virtualized configuration?

Which two are characteristics of block I/O in a fully hardware virtualized configuration?

A.
The virtual machine I/O path only uses the block device driver from dom0.

B.
The virtual machine relies on emulation of the hardware in dom0 for block I/O.

C.
The virtual machine I/O path includes the native block device drivers from the guest
operatingsystem.

D.
The virtual machine does not need a block device driver.

E.
The virtual machine must provide emulation of the hardware through its own IOEMU
drivers.