A customer asks the technician for an explanation of the cause of a printer issue, after the issue is resolved. Which of the following would be the MOST appropriate response?（）

• A、“The process of removal is extremely complex and only certain individuals would understand”.
• B、“There was a moisture build up in the paper tray that apparently caused the paper jam”.
• C、“Condensation within the lower tray assembly hindered the functionality of the rollers which caused improper transfer”.
• D、“The paper jam was caused because irresponsible users spilled liquid in the bottom tray”.