Which of the following best describes the organization of the passage
A． The author compares and contrasts the work of several historians and then discusses areas for possible new research.
B． The author presents his thesis, draws on the work of several historians for evidence to support his thesis, and concludes by reiterating his thesis.
C． The author describes some features of a historical study and then uses those features to put forth his own argument.
D． The author summarizes a historical study, examines two main arguments from the study, and then shows how the arguments are potentially in conflict with one another.
E． The author presents the general argument of a historical study, describes the study in more detail, and concludes with a brief judgment of the study's value.