Your network contains a print server named Server1. Server1 has three shared printers named Printer1, Printer2, and Printer3. Each shared printer uses a different driver. You need to ensure that if Printer1 causes an exception, users can still print to Printer2 and Printer3. What should you do？（）
- A Add a driver filter.
- B Add a printer filter.
- C Modify the print processor options.
- D Modify the driver isolation settings.