Answer:
C
Step-by-step explanation:
Sedimentation is simply the deposit of materials such as gravels, sands, clay, silts e.t.c. All of these materials can be from different sources.
When erosion occurs materials can be carried as dissolved load in solution, suspended load and bed load.
Fertilizers applied in a farm can be carried in a run off which can be sedimented in a body of water. Pesticide and herbicides can also suffer the same fate.
Agricultural practices can loosen the soil and cause massive erosion. These materials will finally find a way to be deposited in a basin.