Final answer:
The routing table is used for forwarding traffic and takes the successor route from the Topology Table. It is critical for routers to determine the best path for packet forwarding in a network.
Step-by-step explanation:
The table that is actually used for forwarding traffic, and takes the successor route from the "Topology Table", is the Routing Table (B). In computer networking, a routing table is a data table stored in a router or a network host that lists the routes to particular network destinations. The routing table contains information about the topology of the network immediately around it. The creation of routing tables is the primary goal of routing protocols. Routers use these tables to determine the best path for forwarding packets across the network.