Which pair of ancient civilizations were ruled by dynasties? China and Egypt China and the Indus River Valley the Indus River Valley and Mesopotamia Egypt and Mesopotamia

Which source would best a historian understand the effect of the great chicago fire on families? a. a biography of a chicago family displaced by the fire b. a letter from a grandmother in new york to her family in chicago c. a newspaper editorial about families who were displaced d. an oral history dictated by an adolescent who fled the fire