What are two considerations for the upgrade process?

An administrator has a 4-node NetApp cluster that was originally installed with clustered Data ONTAP 8.3. The administrator is going to upgrade to ONTAP 9.1.

What are two considerations for the upgrade process? (Choose two.)
A . The administrator must do an intermediate upgrade to ONTAP 9.0, before upgrading to ONTAP
B . Reporting nodes will be set by default on all LUNs after the upgrade process.
C . A rolling upgrade needs to be used for this process-because of the current ONTAP version.
D . All LIFs must reside on their home ports prior to the upgrade.

Answer: C,D