When Load Sharing Multicast mode is defined in a ClusterXL cluster object, how are packets being handled by cluster members?

When Load Sharing Multicast mode is defined in a ClusterXL cluster object, how are packets being handled by cluster members?

A.
All cluster members process all packets, and members synchronize with each other.

B.
All members receive all packets. The SmartCenter Server decides which member will process the packets.
Other members simply drop the packets.

C.
Only one member at a time is active. The active cluster member processes all packets.

D.
All members receive all packets. An algorithm determines which member processes packets, and which member drops packets.