The historian who wrote The South prior to the Civil War grew, but did not develop meant that

The historian who wrote The South prior to the Civil War grew, but did not develop meant that
 
  A. the South had created a prosperous plantation system but had not expanded its borders.
 
  B. the South had expanded as a geographic region but had developed little prosperity.
 
  C. agriculture remained the leading industry of the South, but the plantation system was declining.
 
  D. the southern population increased, but new technology had bypassed the region.
 
  E. the South had failed to move from an agrarian to an industrial economy.