Increasing wool and steel manufacturing is development improved the economy of the North. As the North start exporting the goods. option D is correct.
What were the economic developments in the North?
North industry has diversified industry like commerce resting, finance and other with the free labor of wages with the big and small proprietors.
After the war the condition is totally opposite, but after leaving the south in shambles and leads the economic growth for the north.
Thus, option D is correct.
For more details about economic developments in the North, click here:
https://brainly.com/question/15284830
#SPJ2
