Read the following sentences: “When the biodiversity of a region declines, many of the organisms critical to this filtering process can disappear. Therefore, pressures on the freshwater supply can cause biodiversity to decrease, which can cut the drinkable water supply even further.”
Based on this information, what can be concluded?

A. Water supply and biodiversity are unrelated.
B. Biodiversity affects the fresh water supply, but not vice versa.
C. Water supply and biodiversity are interconnected.
D. The fresh water supply affects biodiversity, but not vice versa.