Answer:
because many cities have tried to make their cities attractive
The third one is the correct answer
Some of Europe's major mountain ranges are: Ural Mountains, which form the boundary between Europe and Asia. Caucasus Mountains, which also separate Europe and Asia, and are the namesake of the Caucasian race.
Urban to Suburban
(Human Geography, The Cultural Landscape, Chapter 3)
B...Major divisions in the sedimentary rock layers