问题：

[多选]

Refer to the exhibit. Which two statements are correct regarding the creation of a multicas tdistribution tree？ （）

A .  Each router determines where to send the JOIN request.
B .  The tree will be built based on the IP address of the E2 interface on router E
C .  The best path to the source will be discovered in the unicast routing table on router B
D .  The best path to the source will be discovered in the unicast routing table on router C
E .  The best path to the source will be discovered in the unicast routing table on router E