Answer: it is D tradition
Explanation:
When explaining the city growth through the multiple nuclei model, geographers acknowledge that modern cities do not follow strict patterns of growth because of : changes to modern trasnportation
Modern transportation will allow the residences from outside the city to came to the big city and back to their home in a small amount of time
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The ocean-floor feature that is associated with trenches is a subduction zone. An oceanic trench is characterized by a narrow and very deep depression on the sea floor. This depression is caused by a subduction zone wherein two plate boundaries converge and one sinks at the bottom of the other plate, forming a thin and deep region between the two plates.