Which action can be used to determine if NULL values are a natural occurrence within your report or the result of aggregation thresholds?

The "Append aggregation threshold columns" option in the Query editor is the correct method because it adds specific columns to your query results that indicate whether a row's data was suppressed due to aggregation thresholds. This allows you to directly identify if NULL values are due to data suppression rather than naturally missing data. Running the report multiple times might show variance, but it doesn't definitively explain the cause of NULLs. Checking aggregation thresholds in the Schema explorer only shows the settings for thresholds, not their impact on a specific query's output.