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During the day, the dazzling glass and wood walls of buildings will form light pollution. The major reasons for this are the following
Glass curtain wall, glazed tile wall, polished marble etc. The reflective surfaces of buildings are all specular reflections. Sunlight hits them, and the reflected light is reflected and emitted from the same direction. The light is very strong, causing light pollution. So ABC is wrong.

So choose D.

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