You have a portable computer that runs Windows 7. Windows Backup is configured to run every day at15:00. You need to prevent backups from automatically running when the computer is running on thebattery. What should you do?（）
- AFrom Backup and Restore， click Change settings.
- BFrom Task Scheduler， modify the AutomaticBackup task.
- CFrom Power Options， modify the settings of the current power plan.
- DFrom the local computer policy， modify the power management settings.