Which of the sentences below best expresses the essential information in the highlighted sentence in paragraph 2? Incorrect choices change the meaning in important ways or leave out essential information. A. The Chicago school of sociology founded by Park and Burgess attempted to help the population of growing cities protect the land around them. B. The model that Park and Burgess created was intended to explain both why the population and area of a city like Chicago grew and in what way urban land was used or settled. C. The founders of the Chicago school of sociology wanted to make Chicago a dynamic model for how other cities should use and settle their land. D. Park and Burgess were concerned that cities like Chicago should follow a model of good land use as the population grew and settled new areas.