This is the architecture diagram of the wide area network (WAN) which illustrate a single organizations WAN links between its campuses across the United States.

Imagine that the organization needs to remove four WAN links to save on cost (and that all links are operational again). Identify four links to be removed. We should ensure that, between any two campuses, the new configuration has at least one route that contains no more than two hops. It is fine if other routes are more than two routes, but there should be at least one route that is no more than two hops between any two campuses.

Please please do not copy paste the answer from any previous post by anyone. This is the 2nd time I am posting this question and no previous post provide any correct solution on this.

Portland New York City Kansas City Los Angeles San Antonio Miami