Which of the following actions is most similar to city-planning techniques developed by the Aztecs?
A. A business relocates its headquarters outside a big city to avoid paying the city's high taxes.
B. A city opens a new elementary school to serve a large immigrant population living on its outskirts.
C. A university designs a new building to ensure that astronomers will be able to easily observe the night sky.
D. A police force opens new police stations in neighborhoods that have had consistently high crime rates.