Which model should you recommend?

A company has an Exchange Server environment. The company plans to migrate to the cloud.

You need to recommend a cloud model that meets the following requirements:

✑ Upgrade the existing email environment

✑ Minimize server and application maintenance

Which model should you recommend?
A . Platform as a service (PaaS)
B . Windows as a service (WaaS)
C . Software as a service (SaaS)
D . Infrastructure as a service (IAAS)

Answer: C

Explanation:

References: https://www.cmswire.com/cms/information-management/cloud-service-models-iaas-saas-paas-how-microsoft-office-365-azure-fit-in-021672.php