Concept:A vertical section of soil that displays all its layers, or horizons, from the top surface to the underlying parent material, is known as the soil profile.
Explanation:Soil is arranged in distinct horizontal layers called horizons.
These layers are normally identified as the A-horizon, B-horizon, and C-horizon.
When a pit is dug or a section is cut vertically, it reveals all these horizons stacked one above another.
This complete vertical display is not merely one single horizon, nor is it a property like texture.
Therefore, the entire vertical section from the surface down to the parent rock is correctly called the soil profile.
Answer:D. soil profile