Which subclass is described as having soils that limit agricultural use due to high slopes or topographical features?

The correct answer focuses on the subclass characterized by high slopes or specific topographical features that significantly restrict agricultural activities. This classification emphasizes how the physical landscape and its gradient impact soil usage, making it difficult for traditional farming practices to be sustainable or even viable.

In regions with high slopes, the risk of soil erosion increases, making it challenging to maintain soil health and fertility. Furthermore, steeply sloped areas often present logistical difficulties for planting, harvesting, and overall crop management. The topography can also affect water drainage and retention, leading to further complications in agricultural practices.

While the other choices relate to various soil conditions that can affect agricultural productivity, they do not specifically address the inherent limitations posed by physical landforms. Cumulative adverse soil conditions focus more on the characteristics of the soil itself rather than the landscape, moisture limitations deal with the availability of water for crops, and excess water addresses issues related to flooding or poor drainage. Each of these can impact agriculture, but they do so in different ways than topographical features do.