Which configuration will meet all the requirements of this scenario?

Scenario: A Citrix Engineer recently implemented a Provisioning Services pilot environment, which still has all the default configurations and uses a standalone SQL Server Express machine to host the Farm database. Management would like the engineer to expand the environmental so that it can be used to support several critical use cases within the organization. The farm database must meet these requirements:

-The solution must ensure that production users are NOT impacted in the event of a database outage.

-The solution must NOT require manual administrator intervention.

-No additional funding is available to accomplish this objective.

Which configuration will meet all the requirements of this scenario?
A . SQL AlwaysOn Availability Group
B . Offline database support
C . SQL Mirroring
D . SQL Clustering

Answer: A