When writes from a virtual machine are delivered to a Fibre Channel storage array, which two actions are taken by the VMkernel? (Choose two)

When writes from a virtual machine are delivered to a Fibre Channel storage array, which two actions are taken by the VMkernel? (Choose two)

A.
The modified I/O request is sent from the physical HBA to the device driver.

B.
The file corresponding to the virtual machine is located is located on the VMFS datastores.

C.
The request for blocks on the virtual disk is mapped to blocks on the appropriate physical device.

D.
The I/O request is converted from binary data form to optical data from.

Explanation:
http://pubs.vmware.com/vsphere-
50/topic/com.vmware.vsphere.storage.doc_50/GUID-3A05795A-283F-4959-AD81- FAC61FD8D456.html