In the study of history, what is one major difference between a region and a period?
A. A region is not influenced by different historical turning points, but
a period is.
B. A region can deal with many different themes, but a period deals
with one specific theme.
C. A region can be studied over long spans of time, but a period
applies to a specific time span. D. A region can be studied only in the modern era, but a period can be
studied in any era.