If We Consider the Concentric Zone Model, Which Is a Conflict

If we consider the concentric zone model, which is a conflict theorist's critique?

A) The model fails to show the gentrification of neighborhoods as certain classes start to take over cities.
B) The model fails to take into account all the parks and playgrounds in the city.
C) The model does not show any careful city planning that usually takes place when a city is born.
D) The model fails to explore areas of overlap where a business might be located in a suburb or people might live above their businesses in the city.