You need to plan the SQL Server 2012 deployment that meets the design requirements. Which of the following steps should you perform? (Choose all that apply)

Upgrading the existing SQL Server 2005 instance to SQL Server 2012 is required because AlwaysOn Availability Groups are only supported on SQL Server 2012 and later, and the existing server must participate in the new availability group configuration.

Installing one new server running SQL Server 2012 is necessary to serve as the secondary replica in an AlwaysOn Availability Group, providing high availability and readable secondary functionality without requiring a full cluster shared storage model.

Installing two new servers is unnecessary because AlwaysOn Availability Groups require only one additional secondary replica node alongside the upgraded primary, making a second new server redundant and outside the stated design requirements.

Failover Clustering (Windows Server Failover Clustering for SQL Server FCI) requires shared storage and is a different high availability model than AlwaysOn Availability Groups; the design requirements call for AlwaysOn, not a traditional failover cluster instance.

AlwaysOn Availability Groups is the correct high availability solution in SQL Server 2012 that provides database-level failover, readable secondaries, and does not require shared storage, making it the appropriate choice for meeting modern HA design requirements.