An administrator attempts to create a link of /etc/db_conf to the target directory /db/v9.7/install/config. The following n?command failed toAn administrator attempts to create a link of /etc/db_conf to the target directory /db/v9.7/install/config. The following ?n?command failed to create the link.ln/db/v9.7/install/config /etc/db_conf. Which option should be used when re-running the command to resolve the problem?（）

A. -s flag to create a soft link
B. -n flag to force create a hard link
C. -N flag to force create a hard link
D. -S flag to force create a soft link