The following command has just been run successfully:

Cd /opt; tar xvf /dev/nst0;

What will happen if the command sequence is run again?

A. An error saying that there is no tape present is generated because the tape has been ejected after being used
B. The contents of /opt will be restored again
C. The entire contents of /opt will be replaced with the contents of the next file on the tape

D. The contents of /opt will have additional content added from the next file on the tape