Which of the Following Would Be an Example of Urban

Which of the following would be an example of urban gentrification?

A) the movement of young urban professionals from a major city like Minneapolis to a smaller nearby community, such as Mankato, in order to take advantage of lower housing costs
B) the building of office parks and complexes along the periphery of a major city, such as Costa Mesa, located south of Los Angeles
C) the displacement of low-income inner city residents so as to revitalize an inner city with new shopping, entertainment and office plazas, often taking advantage of historic urban architecture patterns, such as Pioneer Square in Seattle and the Inner Harbor of Baltimore
D) an urban design movement which stresses high-density, mixed-use, pedestrian-scaled neighborhoods where residents are able to walk to work, school and shopping centers
E) the movement of minority populations from the urban core into the suburbs