Answer:
c. Elasticity
Step-by-step explanation:
When referring to Cloud Servers this capability is known as Elasticity. It basically describes how able and efficient a server is to automatically implement resources and remove resources in order meet the specific amount of demand at any given moment. Many times a server will not have much demand but will still have all the resources being used by the server. Being able to remove these unused resources so that they are available for other usage is what makes the servers elastic.