Which feature allows an administrator to implement master copies of virtual machines to create ready-for- use virtual machines?

Virtual machine templates are master copies of virtual machines that include a pre-configured operating system, applications, and settings. They enable administrators to deploy new, consistent virtual machines quickly and standardize the deployment process.

Resource Pools are used to logically group and allocate CPU and memory resources to virtual machines, not for creating master copies or deploying new VMs.

Snapshots capture the state of a virtual machine at a specific point in time and are primarily used for reverting a VM to a previous state, not for creating new, ready-for-use virtual machines.

Custom Attributes allow administrators to add metadata tags to vSphere objects for organization and filtering purposes, but they do not facilitate the creation or deployment of virtual machines.