A
Environment (Protection) Act, 1986
B
CAQM in National Capital Region and Adjoining Areas Act, 2021
C
National Green Tribunal Act, 2010
D
Air (Prevention and Control of Pollution) Act, 1981
Correct answer: (b) CAQM in National Capital Region and Adjoining Areas Act, 2021
Explanation
CAQM is a statutory body established specifically under the CAQM in National Capital Region and Adjoining Areas Act, 2021. Therefore, option B is correct.