An administrator attempts to create a link of /etc/db_conf to the target directory /db/v9.7/install/config. The following command failed toAn administrator attempts to create a link of /etc/db_conf to the target directory /db/v9.7/install/config. The following 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