The correct answer is: A. Virtual space
A virtual machine (VM) is a software program that creates a simulated computer environment. It behaves like a physical computer, with its own CPU, memory, storage, and network interface. Applications running in a VM can access the resources of the physical computer, but they are isolated from each other and from the host operating system.
VMs are often used to run multiple operating systems on a single physical computer. This can be useful for testing new operating systems, or for running applications that are not compatible with the host operating system. VMs can also be used to create isolated environments for running untrusted applications.
The operating system creates virtual space from the physical computer by allocating resources to each VM. This includes CPU time, memory, storage, and network bandwidth. The operating system also manages the interactions between VMs, ensuring that they do not interfere with each other.
Options B, C, and D are incorrect because they do not accurately describe what the operating system creates from the physical computer.