Events following the civil war resulted in
a. the slowing of industrial progress.
b. the devastation of u. s. natural resources.
c. the u. s. industrial revolution.
d. the second industrial revolution.

Answer; 
D. The second Industrial revolution. 

Explanation; 
The second revolution or the technological revolution followed the civil war and was a phase that transformed the society in tremendous ways. For example it led to increased urbanization as people moved into hastily built housing in cities to be nearer the factories. The main causes of the second industrial revolution were due to; natural resources, abundant labor supply, new sources of power, railroads, new inventions; and inventors. 

Events following the Civil War resulted in "D.the Second Industrial Revolution", since this was a time of great mechanization and factory line assembly that helped pave the war for America's entry into WWI.