Which of the following can be considered a previously undeveloped slle?

In LEED terminology, a previously undeveloped site is one that has not been significantly altered by human activity, such as by construction or paving. An improved park with manicured landscaping and paved playground areas would be considered previously developed because it has been altered from its natural state. The other options, involving areas with substantial building footprints, also indicate previously developed land. Therefore, the area described in option D, despite being relatively small, is the correct choice as it reflects human alteration of the land, making it a developed site.