Which two protocols are needed on the LAN switch?

Refer to the exhibit.

Acme Corporation hired you as a network designer to upgrade their network so that it supports IPv4 and IPv6 multicast.

Which two protocols are needed on the LAN switch? (Choose two.)
A . PIM sparse mode
B . IGMP snooping
C . PIM snooping
D . Source Specific Multicast
E . MLD snooping

Answer: B,E