Which command is used to make all files and sub-directories in the directory (prog)executable by all users?

Which command is used to make all files and sub-directories in the directory (prog)executable by all users?
chmod –R a+xprogs
Well Done. Your Answer is Correct Keep it Up!
chmod –x a+xprogs
chmod -1 a+xprogs
chmod –R 222 progs

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