A historian is examining religion's role in history. Which question might the historian ask if she were organizing her study by period?

AHow did the role of religion in Europe change between the postclassical and modern eras?

BDoes Great Britain have a higher percentage of religious people than the United States?

CHow is the role of religion in North Korea different from what it is in South Korea?

DWhich religion is practice by the most people in Africa today?