A system has the ability to automatically provision additional virtual servers in response to a load increase. This is an example of which of the following cloud features?

Replication focuses on data and system redundancy for high availability and disaster recovery, rather than dynamically adding new servers to increase capacity in response to load.

Resource pooling describes the aggregation of physical resources that can be dynamically allocated, which is a prerequisite for provisioning but not the specific feature of automatic scaling itself.

Orchestration is the automation process that coordinates the deployment and management of resources, including auto-provisioning, but it is the system performing the action, not the specific network feature enabling the new server's operation.

Virtual networks are essential cloud features that provide the isolated and programmable network infrastructure required for newly provisioned virtual servers to connect, communicate, and integrate seamlessly into a scaled-out application environment. Without the underlying virtual network capabilities, the automatic provisioning of additional servers to respond to increased load would be functionally impractical as they would lack operational connectivity.