Match the following Column - I and Colum...

Match the following Column - I and Column - II

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Match the following Column I with Column II. {:("Column I","Column II"),("A. Pollen grain","1. Photochemical smog"),("B. PAN","2. Particulate pollution"),("C. CO"_(2),"3. Global warming"),("D. Cadmium","4. Itai-itai disease"):}

`{:(A,B,C,D),(2,1,3,4):}`

`{:(A,B,C,D),(4,2,1,3):}`

`{:(A,B,C,D),(1,2,3,4):}`

`{:(A,B,C,D),(3,1,2,4):}`