Please choose an appropriate answer.What command line application can you use to learn more about a command, function, or utility?lsfindmanhelp

To learn more about a command, function, or utility in a command line application, the appropriate answer is man.

Explanation:

The man command, short for "manual", is a built-in command in Unix and Linux operating systems that provides detailed documentation about commands, functions, and utilities available in the system. When you use man followed by a command name (for example, man ls), it displays the manual page for that command. This page typically includes a description of what the command does, how to use it, available options and flags, examples of usage, and related commands.

This command is essential for both beginners and experienced users, as it serves as an authoritative source for understanding the various functionalities of command line tools available on the system.

In contrast, the other options listed (ls, find, and help) serve different purposes:

• ls lists directory contents,
• find is used for searching files in a directory hierarchy, and
• help provides information on shell built-in commands specifically, and is not as comprehensive as the man command.

Thus, when seeking comprehensive information about a command, man is the reliable choice.