Among the given soil textures, which is the most permeable?

The most permeable soil texture among the options provided is sandy soil. Sandy soils have large, coarse particles that create significant spaces between them, allowing water to pass through quickly and easily. This characteristic is what gives sandy soils their high permeability.

In contrast, the other soil textures listed have smaller particle sizes and greater cohesion. Coarse loamy soils, while somewhat permeable, still have finer particles that can impede water movement compared to pure sandy soils. Fine loamy soils have even smaller particles and higher levels of organic matter, leading to lower permeability. Sandy clay contains a mixture of sand and clay, where the clay component significantly reduces permeability because of its ability to hold water and form a dense structure.

Thus, sandy soil stands out in this context as the most permeable option.