Which configuration is applied to prevent the network from a Layer 2 flooding of multicast frames with a seamless transfer of multicast data to the client when roaming from one controller to another? 

Answer options:

A. Enable IGMPv3 on the central Layer 3 switch.
B. Enable IGMP snooping on the WLC.C. Enable multicast mode on the WLC.D. Create multicast groups on the central Layer 3 switch.

B