Parent element for role=option seems wrong

The spec says the parent element for role=option is select, which is  
an abstract role some subroles of which don't make sense for option.

To keep the parent-child relationships sensibly reciprocal,  
role=option should allow only role=listbox as parent.

-- 
Henri Sivonen
hsivonen@iki.fi
http://hsivonen.iki.fi/