Question 40: Which of the following best summarises the passage? A. Hanoi's air quality is improving thanks to the transition from charcoal...

Question 40: Which of the following best summarises the passage?

A. Hanoi's air quality is improving thanks to the transition from charcoal grilling to a more modern and coordinated urban micro – economy.

B. The "lid – and – bowl" system is a natural phenomenon that helps pollutants disperse more effectively during the peak days of the winter.

C. Urban air pollution in Hanoi is a multifaceted issue arising from human activities and weather, requiring comprehensive policy reforms.

D. Localised pollution spikes are primarily caused by the absence of suspects and the lack of fabric masks among the city's older residents.