The Chalfont soils are a distinct group of soils found in Pennsylvania, New Jersey, and Maryland. The parent material for these soils is made of silt-sized particles. These particles were originally deposited by glaciers and then later eroded and redeposited in their current location by the wind.

Which of the following terms best describes the Chalfont soils' parent material?
A.
humus
B.
topsoil
C.
loess
D.
loam