Does the essay have to refer to the category as a whole?

Does the essay have to refer to the category as a whole (ie transportation) or can it concentrate on one aspect of it (ie aviation)?
posted by Grace, Calgary on February 17, 2014

Answer

Great question Grace!  We haven't really specified that so I think it is open to interpretation.  It will be up to the judges to decide, but if you do a great job of explaining how changes in aviation have changed transportation options I think the judges will be flexible in that regard.