which reason?

While working on the compensation changes in an Excel workbook, a manger selects the Upload option and
then tries to immediately download the uploaded data. As a consultant, you advise him not to do so because of
which reason? (Choose the best answer.)

A.
This action causes the committed data to roll back, thereby revoking the changes processed.

B.
This action causes the committed data to download immediately, thereby obscuring the error messages.

C.
The data uploaded takes some time to be processed by the server and, therefore, when download is clicked
immediately, it might still show the older data.

D.
When the Upload button is clicked, the data is loaded to a staging table and an upload process is triggered.
This process has to complete successfully before the new data can be downloaded.