You have a file server named Server1 that runs Windows Server 2003 Service Pack 2 (SP2). You need to use Windows Backup to meet the following requirements: ·Minimize the number of scheduled backup jobs. ·Perform a scheduled normal backup to disk every Friday. ·Perform a scheduled normal backup to tape every Friday. ·Perform scheduled differential backups to tape every Monday, Tuesday, Wednesday, and Thursday. How many scheduled jobs should you create from Windows Backup? （）

• A、one
• B、two
• C、three
• D、six