Answer:
A
Explanation:
The superstructure is that part of the building which is mainly above the ground, unlike the substructure which is mainly below ground.
The right answer for the question that is being asked and shown above is that: "D. Building levees along the coast that prevent flooding." In order for New York City to remain intact, one task that city workers must regularly perform, according to Weisman is building levees along the coast that prevent flooding
