What is correct regarding the operation of VSX and multicasting with PIM-SM routing configured?

What is correct regarding the operation of VSX and multicasting with PIM-SM routing configured?
A . Each VSX peers runs PIM and builds its own group database. One of the VSX peers is elected as the
designated router (DR) to forward multicast streams to a receiver VLAN

B . Each VSX peers runs PIM and creates a shared group database. Both VSX peers can forward multicast
streams to receivers in a VLAN, achieving load sharing
C . Each VSX peers runs PIM and builds its own group database. Both VSX peers can forward multicast
streams to receivers in a VLAN, achieving load sharing
D . Each VSX peers runs PIM and creates a shared group database. One of the VSX peers is elected as the designated router (DR) to forward multicast streams to a receiver VLAN

Answer: A

Explanation:

"both VSX switches as a PIM Designate Router (DR). One node is the actual DR, the other node is the proxy DR." "Only the actual DR performs multicast routing and forward traffic destined to groups to its downstream VLANs in the data-path." https://www.arubanetworks.com/techdocs/AOS-CX/10.07/HTML/5200-7888/Content/Chp_Pre_tra_loss/ip-mul-rou-10.htm

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