Final answer:
The correct answer is B. More states in the western portion of the US have natural boundaries.
Step-by-step explanation:
The correct answer is B. More states in the western portion of the US have natural boundaries.
Natural boundaries are physical geographic features that influence the setting of political boundaries. In the case of the United States, the western portion of the country has a larger number of natural boundaries compared to the eastern portion.
For example, in the western United States, the Rocky Mountains and the Pacific Ocean serve as natural boundaries for some states. In contrast, the eastern United States has fewer natural boundaries, with the Appalachian Mountains being the most prominent feature.
Learn more about Natural boundaries in the United States