An IT director is looking to reduce the footprint of their company’s server environment. They have decided to
move several internally developed software applications to an alternate environment, supported by an external
company. Which of the following BEST describes this arrangement?

A.
Infrastructure as a Service

B.
Storage as a Service

C.
Platform as a Service

D.
Software as a Service

Explanation:
Cloud users install operating-system images and their application software on the cloud infrastructure to deploy
their applications. In this model, the cloud user patches and maintains the operating systems and the
application software.