which the router will act as an RP. If the group- list parameter is not used to specify an access list, what group range is advertised by default?

Assume you are using the ip pim send- rp- announce command to configure groups for which the router will act as an RP. If the group- list parameter is not used to specify an access list, what group range is advertised by default?

A.
224.0.0.0/4

B.
224.0.0.0/ 12