I think it might be C I’m not sure tho
A portion of territory within or surrounded by a larger territory whose inhabitants are culturally or ethnically distinct. <span />
The correct answer is b. Store. A store is not residential, as it serves storage and exchange of goods (for Money). All the other options ARE residential : people live in them.
The answer in both statements are true. It is because an interest party is someone who likely stands to gain as this is a type of individual who awaits to gain something or to acquire something. While the disinterested party is no or little stake because he or she doesn't want to be involved or to gain something.