A Customer Plans to Ingest 600 GB of Data Per

A customer plans to ingest 600 GB of data per day into Splunk. They will have six concurrent users, and they also want high data availability and high search performance. The customer is concerned about cost and wants to spend the minimum amount on the hardware for Splunk. How many indexers are recommended for this deployment?

A) Two indexers not in a cluster, assuming users run many long searches.
B) Three indexers not in a cluster, assuming a long data retention period.
C) Two indexers clustered, assuming high availability is the greatest priority.
D) Two indexers clustered, assuming a high volume of saved/scheduled searches.