The real dilemma of traversing the filth was no laughing matter, though, and the city decided to take action. How does the sentence impact the development of the rest of the essay?

A.
It reflects the seriousness of the situation and then moves into a sequence of ways to fix the situation.

B.
It gives the reader the necessary technical knowledge to better understand the situation in the city at the time.

C.
It focuses on changes in the city, and after this sentence, it continues to focus on the problematic situations.

D.
It allows the reader to better know the experts who solved the problem and improved the living conditions in the city.