The zone of leaching is the area in which . weathered bedrock forms a soil horizon organic matter gathers to create a soil horizon minerals are dissolved and removed from soil minerals are precipitated and added to soil

minerals are dissolved and removed from soil

Explanation:

The zone of leaching is the segment of the soil profile, where nutrients or minerals are dissolved to form soluble minerals, which are later carried by percolating water that penetrates the soil, and moved downwards as the water travels through the soil profile. This zone where minerals are dissolved and removed from the soil, is what we refer to as the zone of leaching.

if you listed your answers right then i believe your answer is b.