Which cloud computing element that gives a service provider the ability to dynamically allocate shared physical resources to multiple customers based on each customer's usage demand?

Resource Polling is the correct answer to the given question .

Explanation:

The Resource pooling is used in cloud computing frameworks that describe a situation where companies offer temporary and flexible resources to different clients .In the resource polling the programs can be changed to fit the needs of each client without making any adjustments visible to the client.

The main function of resource pooling that it grants a service provider the opportunity to dynamically allocate common physical resources to different clients based on the utilization criteria of each client.