What parameter of ls prints a recursive listing of a directory's content?

The option that prints a recursive listing of a directory's content is indeed the parameter that includes the -R flag. When you use ls -R, the command lists all files and directories within the specified directory and continues to traverse into each subdirectory, displaying their contents as well. This is particularly useful when you want to get a comprehensive view of all files contained within a directory structure, including those nested within multiple layers of subdirectories.

The other parameters serve different purposes: -a is used to show all files including hidden ones (those starting with a dot), -l displays detailed information about each file or directory in a list format (including permissions, owner, size, and modification date), and -h modifies the output by showing file sizes in a human-readable format (e.g., KB, MB) but does not affect the recursive nature of the listing. None of these flags provide the desired functionality of listing all contents recursively within a directory hierarchy.