How should arouter that is being used in a Frame Relay network be configured to avoid split horizon issues from preventing routing updates?（）
- AConfigure a separate sub-interface for each PVC with a unique DLCI and subnet assigned to the sub-interface
- BConfigure each Frame Relay circuit as apoint-to-point line to support multicast and broadcast traffic
- CConfigure many sub-interfaces on the same subnet
- DConfigure a single sub-interface to establish multiple PVC connections to multiple remote router interface