The correct answer is B. Run the Set native file size field script. In Relativity, the purpose of the Set native file size field script is to populate a decimal field with the size of each document’s native file. This is the most efficient and direct administrative method when a workspace already contains produced native files and the case team wants a usable field showing file size. Relativity’s documentation states that the script stores the native file size for each document in the workspace in a decimal field, making it specifically aligned to this requirement. It is intended for administrators who need to backfill or populate this metadata after files have already been loaded, rather than relying on manual calculations or unrelated operations.

The other options are not correct. A tally/sum/average mass operation works on values that already exist in fields; it does not inspect native files and write their file sizes into a document field. The Set extracted text size field script applies to extracted text size, not native file size, so it addresses a different metadata requirement. The statement that native file size is automatically populated for documents is also incorrect in this context, because Relativity provides a dedicated script precisely for populating that field when needed. Therefore, from a Relativity Certified Administrator perspective under Data loading , the correct and most efficient administrative action is to run the Set native file size field script.