Sumiko owns a condo unit on the third story of her building. She has access to a small roof area outside her bedroom window. She wants to brighten her view and put out potted plants and a chair on the roof of her unit that is only visible from a park area next door. If Sumiko were on the first floor and the area outside her unit were an enclosed patio, it would be considered a(n) ____. a. private area b. limited common area c. general common area d. unrestricted common area