Match the items given in column I and II_ans_key_Column-1 Column-II_ans_key_(P) Global warming (i) Mercury,DDT_ans_key_(Q) Eutrophication (ii) Rise in sea level_ans_key_(R) Biological magnification (iii) CH4,CO2_ans_key_(S) Green house effect (iv) Algal bloom

• A. (p-iv), (q-i),(r-ii) ,(s-iii)
• B. ( p-i), (q-ii) ,(r-iii), (s-iv)
• C. (p-ii), (q-iii), (r-I), (s-iv)
• D. (p-ii), (q-iv), (r-i), (s-iii)