During what phase of the cell cycle does the cell prepare for mitosis

i think that d. wind is the answer.   i missed the question when i answered a. currents.

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.