how did Catholic Church use it's power and influence during the Middle Ages to influence and control people? Provide at least two ways. (please help i'm taking a test)

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