When Load Sharing Multicast mode is defined in a Cluster XL cluster object, how are packets being handled by cluster mem

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

A. All members receive all packets. The Security Management Server decides which member will process the packets. Other members delete the packets from memory.
B. All cluster members process all packets and members synchronize with each other.
C. All members receive all packets. All members run an algorithm which determines which member processes packets further and which members delete the packet from memory.
D. Only one member at a time is active. The active cluster member processes all packets.