Which one of the following best expresses the main idea of the passage? A. An earlier theory about the status of middle-class women in the nineteenth century has been supported by recent scholarship. B. Recent studies of middle-class nineteenth-century women have altered an earlier theory about the status of colonial women. C. Recent scholarship has exposed an earlier theory about the status of colonial women as too narrowly based and oversimplified. D. An earlier theory about colonial women has greatly influenced recent studies on middle-class women in the nineteenth century. E. An earlier study of middle-class women was based on insufficient research on the status of women in the nineteenth century.