It is bad to litter because that is harming the environment. When you throw out a can, it can harm a animal or several animals. Litter can also sink into the ground (I think) and harm the plants growing.
An animal cell that is placed in a hypotonic solution will rapidly gain water, because osmosis would cause the water to move to an area with more solutes. In this case, that is the inside of the cell. A cell in a hypotonic solution may gain enough water to lyse, or rupture, the cell membrane, which destroys the cell.
Answer:
I think the awnser is D. Hope it helps