Final answer:
The feature most often shown on a political map is capital cities, serving to represent the administrative centers and geopolitical boundaries of countries on a map.
Step-by-step explanation:
The feature most often shown on a political map is A. capital cities. Unlike topography or elevation which are typically represented on physical maps, a political map focuses on territorial boundaries and human-made features such as countries, states, and major cities. Capital cities are particularly important as they are usually the administrative centers of political units. For example, when viewing a political map, one would easily locate Washington D.C. as the capital of the United States or Ottawa as the capital of Canada.
Political maps serve educational purposes and are useful tools to understand the geopolitical landscape, illustrating how natural physical geographic features can influence political boundaries. In contrast, topography, type of climate, and elevation are more relevant to physical maps that depict the natural landscape.