Which two conditions must be met before separate ISPs can provide interdomain multicast routing?

A.	Each ISP must configure MSDP to connect its individual multicast administrative domain to the domains at other ISPs.
B.	Each ISP must dedicate a single router to handle multicast traffic between providers.
C.	Each ISP must replace its RP assignment with a global RP.
D.	Each ISP must configure its network to use PIM-DM.
E.	Each ISP must support intradomain multicast routing.