Final answer:
The solution that enables virtualization is a virtual machine monitor (VMM), also called a hypervisor. A VMM allows multiple VMs to run on a single hardware host, each with its own operating system.
Step-by-step explanation:
The solution that enables virtualization is a virtual machine monitor (VMM), also known as a hypervisor. Virtual machine monitors are software, firmware, or hardware that create and manage virtual machines (VMs). A VMM allows multiple operating systems to share a single hardware host, with each operating system running in its own isolated VM, thereby improving resource utilization and providing a layer of abstraction between the hardware and the operating systems.
Option B, virtual machine monitor, is the correct answer. It is not to be confused with options like A) Round Robin, which is a scheduling algorithm, D) DalviB600 which does not relate to virtualization, or C) Hyperfile, which is not a recognized term in the context of virtualization technologies.