**Answer:**

The honeycomb, flocculent, and dispersed structure are found in **coarse-grained soil**.

**Explanation:**

Coarse-grained soils are composed of particles with a larger size range, such as sand and gravel. These soils have a higher permeability and lower water-holding capacity compared to fine-grained soils.

1. **Honeycomb Structure:** The honeycomb structure in coarse-grained soils refers to the arrangement of individual particles with voids or spaces between them. The particles are not tightly packed, and there are voids or air spaces present in between. This structure gives the soil a honeycomb-like appearance. The honeycomb structure allows for good drainage and high permeability, making coarse-grained soils suitable for applications that require rapid water movement, such as drainage systems or filters.

2. **Flocculent Structure:** The flocculent structure in coarse-grained soils refers to the arrangement of particles in small clusters or aggregates. The particles are loosely bonded together, forming small clumps or clusters. The flocculent structure provides stability to the soil, reducing the likelihood of particle movement or erosion. It also increases the porosity of the soil, allowing for the movement of air and water through the soil.

3. **Dispersed Structure:** The dispersed structure in coarse-grained soils refers to the individual particles being uniformly distributed throughout the soil mass. The particles are not bonded or clustered together, and there is no significant arrangement or organization. The dispersed structure reduces the stability and strength of the soil, making it more prone to erosion and movement. It also decreases the permeability of the soil, hindering the movement of air and water through the soil.

In contrast, fine-grained soils such as silt and clay have smaller particle sizes and tend to have different structural characteristics. Fine-grained soils often exhibit cohesive behavior and have higher water-holding capacity due to their smaller particle sizes and increased surface area. They can form cohesive and plastic masses when wet, and can exhibit swelling and shrinkage properties. The structural characteristics of fine-grained soils are different from those of coarse-grained soils, which is why the honeycomb, flocculent, and dispersed structures are not typically found in fine-grained soils.

Therefore, the honeycomb, flocculent, and dispersed structures are found in coarse-grained soils (option **b**).