You have a computer that runs Windows 7. Your computer s disk configuration is shown in the exhibit.(Click the Exhibit button.) You need to ensure that you can create a striped volume on the computer.  What should you do?（）

• A、Add an additional hard disk.
• B、Convert all disks to dynamic disks.
• C、Install a digitally-signed disk driver.
• D、Set the Startup Type of the Virtual Disk Service （VDS） to Automatic.