In the context of adding a node to a PowerScale cluster, what is the purpose of smartfailing?

In the context of adding a node to a PowerScale cluster, what is the purpose of smartfailing?
A . It allows the node to join the cluster without disrupting existing operations.
B . It tests the node’s compatibility with the cluster environment.
C . It provides a mechanism for graceful removal of a node.
D . It ensures data is evenly distributed across the cluster.

Answer: C