Which level of data access does a SAN device provide compared to NAS? or it emulates one or more disks) that connects to its clients using Fibre Channel and a block data accessprotocol such as SCSI.

A.
file access

B.
block access

C.
packet access

D.
object access

Explanation:
A SAN device (or, as we promised to call it, a SAN-attached storage device) is a block-access (i.e., it is a disk
Reference: http://www.snia.org/education/storage_networking_primer/san/closing