A Customer Has 30 Indexers in an Indexer Cluster Configuration

A customer has 30 indexers in an indexer cluster configuration and two search heads. They are working on writing SPL search for a particular use-case, but are concerned that it takes too long to run for short time durations. How can the Search Job Inspector capabilities be used to help validate and understand the customer concerns?

A) Search Job Inspector provides statistics to show how much time and the number of events each indexer has processed.
B) Search Job Inspector provides a Search Health Check capability that provides an optimized SPL query the customer should try instead.
C) Search Job Inspector cannot be used to help troubleshoot the slow performing search; customer should review index=_introspection instead. Search Job Inspector cannot be used to help troubleshoot the slow performing search; customer should review index=_introspection instead.
D) The customer is using the transaction SPL search command, which is known to be slow. The customer is using the transaction SPL search command, which is known to be slow.