Refer to the exhibit. ISP_C is providing IPTV services to ISP_A and ISP_B. The IPTV services use the GLOP IP address range **233.3.1.0/24**. PIM-SM has already been enabled globally in each ISP network, and RP functions have been configured on edge routers in every autonomous system. ISP_C must implement a connection based on RFC 3618. Which solution meets this requirement?