why is the Cisco UCS 6248UP a better choice than the Cisco UCS 6140XP?

When multicast traffic is a required design element, why is the Cisco UCS 6248UP a better choice
than the Cisco UCS 6140XP?

A.
Cisco UCS 6140XP does not allow multicast traffic propagation.

B.
Cisco UCS 6140XP does not support IGMP snooping on uplink interfaces.

C.
Cisco UCS 6248UP employs separate unicast and multicast egress queues.

D.
Cisco UCS 6248UP supports PIM dense mode rendezvous points.

E.
Cisco UCS 6248UP supports dynamic queue mapping of IGMP v3 requests.