What is the role of a cloud services catalog?

A. It defines the capabilities for the cloud.
B. It defines the available VMs for creation in the cloud.
C. It defines the available VMs running in the cloud.
D. It defines the drivers for VMs in the cloud.

B. A cloud services catalog satisfies the self-service aspect of cloud computing. It does this by listing all of the available VMs that can be created in the cloud environment, such as web servers, application server, databases, and so on.