Which vCenter Chargeback billing policy should be used in this situation?

—A vCloud Service Provider offers Infrastructure-as-a-Service consisting of a fixed allocation of
resources. Only a portion of the resources are guaranteed. If customers exceed the guarantee a
new cost is applied. Which vCenter Chargeback billing policy should be used in this situation?

A.
vCloud Director Actual Usage

B.
vCloud Director Allocation Pool

C.
vCloud Director Overage Allocation Pool

D.
vCloud Director Reservation Pool