Gopher tortoises live on dry land. They live in large holes that they dig in the soil. Which statement gives the best explanation of how this behavior aids in soil formation? A. It hardens the soil, allowing less water to reach the rocks underground.

B. It causes weathering of the rocks, as the tortoise breaks the rocks into smaller pieces.

C. It causes weathering of the rocks, as the tortoise breaks the rocks into smaller pieces.

D. It loosens and mixes the soil, increasing air in the soil and the ability to drain water.​