Which of the following represents a supplementary feature?

The concept of supplementary features in terrain analysis refers to features that assist in understanding and navigating the landscape but are not the primary features themselves. A "cut," which is an excavation or a lowered area created typically for roads or trails, serves as a supplementary feature because it modifies the terrain and provides additional context about the area, particularly in relation to how movement or visibility might be affected.

In contrast, primary features such as hills, cliffs, and spurs serve more as significant landmarks or geographic formations that can play a direct role in navigation, strategy, or tactical considerations. While all these features contribute to the broader understanding of the landscape, the cut is specifically an alteration made to facilitate movement or access, making it a supplementary feature.