Problem: As a research scientist you notice a number of users of a particular provider's network sharing illegal files. The provider has agreed to block 15 nodes (users) upon your recommendation. Assuming you have the network graph, which is the following centrality measures will you use to choose the top 15 nodes to maximally disrupt the network and why? - Degree, Betweenness, Closeness, PageRank. Assume these are negatively correlated (i.e., a node high on one centrality metric is low on the other metrics).