If you have a command that offers an option or a flag, use the <option> and </option> tags.

	Note
	The <option> tag set is only meant to be used for command line options, not options in configuration files.

In XML, specifying an option would look like the following:

For example, with the command <command>ls</command> you can 
specify an option such as <option>-la</option>.

The output:

For example, with the command ls you can specify an option such as -la.