$(5$ points$)$ Compute$/$draw the minimum spanning tree for router C as root taking into

account the shown link cost numbers.

b$)(5$ points$)$ Compute$/$draw the multicast minimum spanning tree for router C for a group

with members at routers A$,$ B$,$ C$.$ D$,$ E$,$ and I.

Hint: You can compute minimum routes by inspection and without showing details; i$.$e$.$

you do not need to execute Dijkstra$$s algorithm.