The Chief Information Officer (CIO) has mandated web based Customer Relationship
Management (CRM) business functions be moved offshore to reduce cost, reduce IT overheads,
and improve availability. The Chief Risk Officer (CRO) has agreed with the CIO’s direction but has
mandated that key authentication systems be run within the organization’s network. Which of the
following would BEST meet the CIO and CRO’s requirements?

A.
Software as a Service

B.
Infrastructure as a Service

C.
Platform as a Service

D.
Hosted virtualization service