Which of the following conclusions can be drawn about the impact of the Federal Reserve Act of 1913 on the U. S. economy, based on the statement below

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