Arrange the following statements with reference to accelerated eutrophication in proper manner._ans_key_(p)Silt and debris pile up at the bottom of the lake_ans_key_(q)Marsh plants take roots in the shallows begin to fill the lake basin_ans_key_(r)Introduction of large number of nitrogen and phosphate in the pond_ans_key_(s)Encouragement of growth of aquatic organisms.

• A. p,q,r,s,
• B. r,s,q,p
• C. r,s,p,q
• D. s,r,p,q