What is the purpose of the IBM Cloud Computing Reference Architecture V4 cloud enabled data center adoption pattern?
A. To describe how to build a virtualized data center infrastructure
B. To describe how to build an Infrastructure as a Service (IaaS) in a private cloud
C. To describe how to use a public IaaS from a data center
D. To describe how to prepare a data center to deliver IaaS and Platform as a Service cloud services to consumer users