The server host1 has been set up as a backup system with the following /etc/exports：/backups -rw. How can a second server regularly use this disk space？（）

• A、/usr/sbin/mkfs -s 8G -o nbpi=2048，frag=512 /dev/lv00 -b -l host1
• B、/usr/sbin/crnfsmnt -d /backups -l /backups host1 -R -X -v -S -b bg
• C、/usr/sbin/mknfsmnt -f /backups -d /backups -h host1 -a -S -t rw -w bg -g
• D、/usr/sbin/crfs -v nfs -g vg1 -A yes -p rw -m /backups -a logname=/dev/lv00