Refer to the exhibit. Assume that no multicast optimization is done on LAN switches A and B. Which two features can be used to optimize multicast traffic forwarding in this situation? (Choose two.)

Enabling IGMP snooping querier causes the switch to originate IGMP general queries, which prompts hosts to respond with membership reports; the switch can then populate its group membership table and forward multicast only to interested ports, making IGMP snooping functional without a dedicated multicast router.

A static MAC entry maps the multicast source server's unicast MAC address, but Layer-2 multicast forwarding is based on the destination multicast group MAC address derived from the group IP, so this entry does not influence group-based multicast distribution.

Without any IGMP querier present, IGMP snooping has no membership data and may not forward multicast to any port; disabling IGMP snooping causes the switch to flood multicast out all ports, guaranteeing delivery to all receivers as a simpler fallback solution.

Disabling the IGMP query election process prevents any switch from becoming the designated querier, which means no IGMP general queries are sent, hosts never report group membership, and IGMP snooping cannot build any forwarding state.

PIM snooping listens to PIM protocol messages between Layer-3 routers to optimize multicast forwarding across routed segments; it does not address the absence of an IGMP querier in a Layer-2-only switched environment with no PIM-enabled routers.