Which two solutions can be used to optimize multicast traffic forwarding in this situation?

Refer to the exhibit

Assume that no multicast optimization is done on LAN switches A and B.

Which two solutions can be used to optimize multicast traffic forwarding in this situation? (Choose two)
A . Disable the IGMP query election process
B . Configure a static MAC entry for the multicast server
C . Enable IGMP snooping querier on both switches
D . Disable IGMP snooping on both switches
E . Enable PIM snooping on both switches

Answer: C,D