Which correctly lists the three parts of soil that are classified by their particle size? bedrock, humus, and clay clay, bedrock, and silt humus, sand, and clay sand, clay, and silt

The correct option is;

Sand, clay, and silt

Explanation:

The categorization of soil particles by size can be made into three classes including sand (particle size between 0.05 mm to 2 mm), silt, (particle sizes between 0.002 mm to 0.05 mm) and clay (particle sizes lesser than 0.002 mm), larger particles such as stones, pebbles, boulders and rock other fragments are left out of the textural classification because of their inertness

The combination of the three particle sizes can be found in most soils and their relative proportion defines the texture of a given sample of soil.

i'd think it's paralell