What does nature and social science say about air pollution

In social science lens, we usually think about the cause of air pollution.

The steps which government is taking to ensure good air quality. The rising air pollution and its effects on the population. ... On the other hand, social science has its own doubts and disbeliefs like who is responsible for air pollution.

Iagree with the answer above

Iwould go with write exactly two extra paragraphs to point out additional information. but the keyword "exactly" throws me off. leads me to believe it's d. go with your gut feeling. either "write exactly two extra paragraphs" or "none of these".