What happens when the initial Cassandra cluster running in the lab is reduced to two replicas (by running the command kubectl scale rc cassandrareplicas-2). Suppose you wait enough time to let the cluster stabilize Select one O a. The cluster keeps working fine. Data from the lost node is not rebalanced (but the replication factor is high enough to cope with the failure) O b. The cluster breaks. Cassandra cannot operate without every node running O c. The cluster keeps working fine. Data from the lost node is rebalanced to the two live nodes O d. The cluster keeps running, but queries cannot be executed because the replication factor is not fully met