Q. A user executes the following command successfully: $ chmod +x file1.txt Which of the following is true of the output of this command?

• (A) The command results in adding execute permission for all users (i.e., user,group & others)
• (B) The command results in an error since the file is not an executable file
• (C) The command results in adding execute permission for the owner of the file
• (D) The command results in adding execute permission to the user who ran this command