A technician needs to change an existing drive formatted in FAT32 to a NTFS format, whileretaining the data. Which of the following is the BEST way to make this change?（）

• A、Use Device Manager to disable the drive, then format it as NTFS.
• B、Use Disk Management to change the format type.
• C、Use Task Manager to start the CHKNTFS command.
• D、Run the CONVERT command from the command prompt