In selecting roads that are division lines between cities, what spatial query keeps only those road lines?

In the context of identifying road lines that serve as division lines between cities, the correct choice involves a spatial query that focuses specifically on the relationship between the selected city polygons and road lines. The option that indicates selecting from currently selected City Polygons that contain Road Lines is appropriate because it allows for the identification of road segments that lie within the geographical boundaries defined by the city polygons.

This approach works because it directly relates the spatial features of the city polygons to the road lines, helping to isolate only those road segments that actually divide the cities. By selecting city polygons and checking which road lines lie within them, it effectively filters the road lines based on their spatial context relative to the cities.

The other choices either do not accurately represent the spatial relationship needed, do not focus solely on the road lines, or would result in the removal of necessary data rather than the selection of relevant road features. Therefore, the selected query method preserves the critical information about which road lines act as borders, aligning with the intent of distinguishing boundaries between cities effectively.