In paragraph 4, why does the author point out that the economic and religious organizations of early Sumerian cities centered on local temples? A. To identify the bureaucratic needs that led to the development of writing B. To identify factors responsible for the significant influence of Sumerian writing on subsequent civilizations C. To explain why few examples of significant innovations have issued from a bureaucratic organization D. To explain why the use of simple pictographs eventually became stylized into the system of writing known as cuneiform