You have an x86-based system with mirrored boot drives (c1d0p0 and c2d0p0 ) . To enable the system to boot off of the disk (c2d0p0) which holds the secondary submirror when the primary boot disk (c1d0p0 ) fails, you need to configure the system to see c2d0p0 as the alternate boot device. Which answer describes the procedure used to configure the alternate boot device?