"What is one benefit of cloud computing?" There is no operational cost for a cloud computing environment. The resources can quickly move from one cloud environment to another. Computer resources can be quickly provisioned. A workload can quickly move to a cloud computing environment.

Provisioning of computing resources can be done quickly

Explanation:

Cloud computing is the facility of making computing resources available for the user as per demand. Storage for data, power for computing,service for computing etc.

According to the question, cloud computing is beneficial as computing resources can be prepared and served to the network user on-demand in quick manner. Other options are incorrect because movement of workload towards cloud computing,resource movement from one environment to other of cloud computing and  operation cost absence are not the advantage of cloud computing.