Removing nodes or edges in a network can effectively cut off the network or

increase its average path length thereby reducing efficiency. If one seeks to do this for the

purposes of attacking an adversary, hubs are the likely target. Select the next best target from

the below options. Why $(25$ points$)?$

a$.$ Nodes with high clustering coefficient

b$.$ Nodes$/$edges with high betweenness centrality

c$.$ Nodes with low degree

d$.$ Nodes with high closeness centrality