The correct answer is: B. talus
Talus is a type of soil that is transported by gravitational forces. It is made up of loose rock fragments that have been broken down by weathering and erosion. Talus is often found at the base of cliffs or mountains.
Loess is a type of soil that is transported by wind. It is made up of fine, silt-sized particles that have been blown from one place to another. Loess is often found in dry, windy regions.
Drift is a type of soil that is transported by glaciers. It is made up of rock and soil that has been carried along by the glacier. Drift is often found in areas that have been glaciated in the past.
Dune sand is a type of soil that is transported by wind. It is made up of sand-sized particles that have been blown from one place to another. Dune sand is often found in dry, windy regions.
In conclusion, the correct answer is B. talus. Talus is a type of soil that is transported by gravitational forces. It is made up of loose rock fragments that have been broken down by weathering and erosion. Talus is often found at the base of cliffs or mountains.