Consider the following statements regarding air pollution in Delhi:
1. The air pollution level in Delhi recently spiked to 10 times the WHO limit for particulate matter (PM2.5).
2. The WHO considers Delhi the second most polluted city in the world.
3. Vehicular emissions contribute minimally to air pollution in Delhi due to the adoption of BS-VI fuels.
Which of the statements given above is/are correct?
1
1 and 2 only
2
1 only
3
2 and 3 only
4
1, 2, and 3