问题详情

The author includes the statement by Robert Park in paragraph 2 in order to

A．establish the specific topics about which Park and Burgess may have disagreed

B．identify the aspects of Chicago"s development that required careful planning

C．specify some of the factors that contributed to the pattern of development of cities

D．compare the definitions given by Park and Burgess for the physical form. of cities

请帮忙给出正确答案和分析，谢谢！