WHICH_CHARACTER_IS_USED_TO_REPLACE_‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚Àւ§UGO‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬•_STRING_IN_CHMOD_COMMAND??$#

• A. a
• B. v
• C. x
• D. o