You are the administrator for Company.com's network.  Exams, who works in Financial department, wants to update the printer connected to her Windows 2000 Professional computer so that she can print graphics at a higher resolution. Exams downloads a printer driver from the Internet. The then asks for your assistance in installing the driver.  You are unsure of the source of the driver. You want to ensure that the user does not lose production time because of an incompatible driver. What should you do?（）

• A、Display the Advanced Attributes dialog box for the printer driver file. Install the driver if the Contents have been secured. 
• B、Run File Signature Verification to verify that the new driver has a Microsoft digital signature. Do Not install the driver if it does not have the signature. 
• C、Install the driver. Logon to the computer. If the computer fails after installing the driver, restart The computer. Then use the last known good configuration to recover the original driver. 
• D、Install the driver. Logon to the computer. If the computer fails after installing the driver, use the  Hardware troubleshooter. Then use the Recovery Console to recover the original driver.