Please someone I’m confused

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

What is the main problem with the commission form of government? a commissioners often focus on one area. b. each commissioner has too much administrative power. c. the commissioners have trouble working together. d. commissioners are often very corrupt.

Which of the following does not describe europe after that fall of the western roman empireh