You receive a new UltraSPARC machine with two internal disk drives. You want to install the machine using JumpStart, and you want to mirror the root, /usr, and /var file systems as part of the installation. The beginning of the profile looks like this:
install_type initial_install
cluster SUNWCall
partitioning explicit
filesys c0t0d0s1 512 swap
filesys c0t0d0s7 free /export/home
filesys c0t1d0s7 free
Which additional lines are needed to complete the installation?

A.
filesys c0t0d0s0 free /
filesys c0t0d0s5 1024 /var
filesys c0t0d0s4 4096 /usr
metadb c0t0d0s5 count 2
metadb c0t1d0s5 count 2

B.
filesys mirror:d10 c0t0d0s0 c0t1d0s0 1024 /
filesys mirror:d20 c0t0d0s3 c0t1d0s3 4096 /usr
filesys mirror:d30 c0t4d0s4 c0t1d0s4 1024 /var

C.
filesys mirror:d10 c0t0d0s0 c0t1d0s0 1024 /
filesys mirror:d20 c0t0d0s3 c0t1d0s3 4096 /usr
filesys mirror:d30 c0t4d0s4 c0t1d0s4 1024 /var
metadb c0t0d0s5 count 2
metadb c0t1d0s5 count 2

D.
filesys mirror:d10 c0t0d0s0 c0t1d0s0 free /
filesys mirror:d20 c0t0d0s3 c0t1d0s3 4096 /usr
filesys mirror:d30 c0t4d0s4 c0t1d0s4 1024 /var
metadb c0t0d0s5 count 2
metadb c0t1d0s5 count 2