I think it is the C one because it depends on the type of construction in the area
The variable you would need to keep track of is hight
Answer:
Fast growth can create negative externalities e.g. noise pollution and lower air quality arising from air pollution and road congestion. Increased consumption of de-merit goods which damage social welfare. ... These externalities reduce social welfare and can lead to market failure.
Answer: Sediment
Explanation: Sediment can consist of rocks and minerals, as well as the remains of plants and animals. It can be as small as a grain of sand or as large as a boulder. Sediment moves from one place to another through the process of erosion. Erosion is the removal and transportation of rock or soil.