When a server boots, an error shows briefly on the screen that indicates that a device was unable to be mounted. A review of the /etc/fstab shows the device was supposed to be mounted at boot. The device is present in the lsblk output. What is the most likely cause of the error?
a. The device has no free space
b. The device mount point is missing
c. The system disk has no free inodes
d. The systemd mount.service is disbaled