A snapshot of the /export/project file system has been taken. Prior to backing up the file system， you need to check to see if certain files are on the snapshot. The snapshot needs to be mounted to check for these files. 
Which command will mount the snapshot？ （）

A. mount -F ufs -o ro /dev/fssnap/0 /check
B. mount -F ufs -o rw /dev/fssnap/0 /check
C. mount -F ufs -o ro /export/project /check
D. mount -F ufs -o rw /export/project /check