What are the five specific characteristics common to the Cloud environments?

A.	on-demand usage, ubiquitous access, multi-tenancy, measured usage, resiliency
B.	on-demand usage, ubiquitous access, tiered-tenancy, measured usage, resiliency
C.	on-demand usage, autonomous access, multi-tenancy, measured usage, resiliency
D.	dynamic usage, ubiquitous access, multi-tenancy, measured usage, resiliency