One thing: I used "According to the 2023 World Air Quality Report" - this is a helpful context. The existing solution mentions it implicitly. This is fine.
Also, should I mention that Begusarai is option D? Yes, the Answer section should state the final correct answer clearly.
Concept:PM2.5 concentration levels determine the pollution ranking of cities worldwide.
Explanation:According to the 2023 World Air Quality Report, Begusarai in Bihar recorded India's highest average PM2.5 level.
The average PM2.5 concentration in Begusarai was
118.9 μg/m3.
This made Begusarai the most polluted metropolitan area in the world in 2023.
Guwahati ranked second with
105.4 μg/m3.
New Delhi ranked third with
102.1 μg/m3.
India was the third-most polluted country globally, after Bangladesh and Pakistan.
Major sources of particulate pollution include vehicle exhaust, wood burning, and construction dust.
Answer:Begusarai (Option D).