Which of the following problems can be solved by using virtual machines?

I. You need to deploy a solution that makes high$-$risk network connections and therefore must be isolated from other solutions running on the same machine.

II$.$ You want to deploy a solution on the same physical machine as other solutions in order to maximize use of the machine's resources.

III. You need to package a solution for development and testing in such a way that it runs consistently on different hosts.