Which of the following technologies can enable resource utilization through computer virtualization?

The option that highlights technologies enabling resource utilization through computer virtualization is indeed correct because it includes various well-known virtualization platforms that allow multiple operating systems to run on a single physical machine.

Hyper-V is Microsoft's virtualization solution, allowing users to create and manage virtual machines on Windows servers. Xen is an open-source hypervisor that enables efficient virtualization through paravirtualization or hardware-assisted virtualization.

When considering these technologies individually, each offers unique advantages and contributes to effective resource utilization. For instance, they allow for the consolidation of workloads onto fewer physical servers, ultimately leading to reduced hardware costs, increased efficiency, and improved scalability in cloud environments.

While the other choices also represent significant virtualization technologies — like KVM (Kernel-based Virtual Machine), VMware, and OpenStack — the chosen answer combines the benefit of supporting multiple platforms, showing a broader understanding of virtualization in a computing context.