How would you describe the bearing strength of highly compacted fine-grained soil?

The bearing strength of highly compacted fine-grained soil is generally characterized as high because compaction increases the density of the soil and reduces the void spaces between soil particles. This results in improved inter-particle contact and friction, leading to a greater ability to support loads without significant settlement or failure. Fine-grained soils, when compacted properly, can achieve substantial strength due to their cohesive nature, which allows them to effectively resist shear forces. The compacted state diminishes the potential for pore water pressure buildup during loading, further enhancing the bearing capacity.

While the other options suggest varying levels of strength, it is the high density and cohesion in highly compacted fine-grained soils that firmly establish their capacity to bear loads efficiently and reliably.