Which of the following commands are used to get information on the proper use of ls? (Choose TWO correct answers.)

This choice does not represent a valid command in Unix-like operating systems. There is no command to retrieve usage information by simply typing "option ls." Users typically need to use commands like `man` or `info` to access documentation instead of this non-existent command.

While "usage" might imply a command related to usage information, it is not a recognized command in Unix-like systems. Users cannot obtain information on the `ls` command by typing "usage ls." Instead, specific commands like `man` and `info` serve that purpose.

Similar to the previous options, "manual ls" is not a valid command for accessing information about the `ls` command. Users must use `man ls` to access the manual or `info ls` for detailed information. This choice does not conform to the correct syntax required to retrieve usage documentation.