Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information. A. Some cities were associated with economic activities, while others were government or religious centers. B. Emerging cities generally served strategic administrative, economic, and religious purposes. C. The creation of an economic or administrative activity led to the emergence of a city for its proper supervision. D. Some cities emerged as economic centers and later became the sites of administrative or religious activities.