<option>The <option> element describes
an option that can be used to modify a command (or something else,
like a configuration).
This element
is part of the DITA programming domain, a special set of DITA elements
designed to document programming tasks, concepts, and reference information.
See appendix for information about this element in OASIS document type shells.
+ topic/keyword pr-d/option
something <option>/modifier</option>The following attributes
are available on this element: Universal attribute group,
outputclass, and @keyref.