When adding nodes to a cluster in Data ONTAP 8.1.1 Cluster Mode, you must observe which two limitations? (Choose two.)
A. All nodes in a cluster must have the same number of Fibre Channel target ports.
B. All nodes in a cluster must have the same amount of storage capacity.
C. All nodes in a cluster must have redundant connections to the cluster network
D. All nodes in a cluster must be of the same storage controller model.
E. Nodes may only be added in HA pairs.