Correct Answer: A, B, CTo sustain data availability through two host failures, the administrator must increase the cluster capacity by adding more nodes, specifically three more nodes, raising the node count to six. This is critical because a higher fault tolerance (RF3) requires a minimum of five nodes. Additionally, converting both the cluster and containers from RF2 (Replication Factor 2) to RF3 (Replication Factor 3) ensures that data is replicated across three different nodes, allowing it to remain available even if two nodes fail. These three configuration steps collectively ensure the required level of data availability.