What would be a benefits of using flex fabric switches in a fibre channel storage environment?

During Technology workshop, the customer asks about different between converged and fibre channel switches.

What would be a benefits of using flex fabric switches in a fibre channel storage environment?
A . Support for combining multiple physical switches in to one virtual switch with a single IP address
B . Support for six Ethernet and two fibre channel, or six Ethernet and two ISCSI or eight Ethernet adapters per server.
C . Zones can be configured for QoS with high, medium, and low priorities within a fabric on a zone by zone basic
D . In-flight compression and encryption provides efficient link utilization and security

Answer: A