The correct answer is letter "A. railway building was a priority in the South during and after Reconstruction."
Here are the following choices:
A. railway building was a priority in the South during and after Reconstruction
B. little progress was made in repairing the structural damage of the Civil War
C. more people focused on building new factories over repairing railroad lines
D. the only new railroads built were those connecting the North to the Sout
