Joe, a user, reports that he is no longer able to write files to his home directory. Upon inspection, the Linux administrator discovers that attempting to create a new file gives the following error: No space left on device. However, the disk and partition are not full. Which of the following commands would be BEST for the administrator to use to continue troubleshooting this problem?
A. rm -Rf ~/.*
B. fsck -y /dev/sda1
C. df -i
D. fdisk /dev/sda
