A stone is released from a point $20\,\text{m}$ above the water surface. The graph shows how the stone’s velocity changes with time. Which statement gives the stone’s approximate position four seconds after it is released?
- AIt is at a distance of $10\,\text{m}$ above the surface of the water.
- BIt is at a distance of $10\,\text{m}$ below the surface of the water.
- CIt is at a distance of $20\,\text{m}$ below the surface of the water.
- DIt is at a distance of $30\,\text{m}$ below the surface of the water.