单项选择题

A. From Windows Backup, run the ASR Wizard.
B. From Windows Backup, back up the system state to floppy disk.
C. From the %systemroot%\repair folder, copy asr.sif, asrpnp.sif, and setup.log to the floppy disk.
D. From the %systemroot%\inf folder, copy windows.adm, asroc.inf, and asroc.pnf to the floppy disk.