(Networks) Compute the forwarding table for router B illustrated in the network diagram below.

Assume that the cost measured in hops is 1 for two directly connected routers and 0 for a router and its connected network. Enter the table row-by-row in the following format:

(next hop, cost in hops).

For example, if the next hop from B is K, where the cost in hops is 5, write (K,5). For directly connected networks choose none as the label of the next hop router.