The Commission for Air Quality Management (CAQM) revoked Stages 3 and 4 of the "GRAP" across NCR. What does GRAP, introduced in 2017 to combat Delhi's air pollution, stand for, and how does it categorize air quality levels when AQI exceeds 450?
1
Graded Response Action Plan, Severe Plus
2
General Response Action Plan, Very Poor
3
Graded Resolution Air Plan, Poor
4
General Resolution Air Pollution, Severe
5
None of the above