The correct answer is B. Lincoln.
President Lincoln was the person who won in the civil war in the north.
The war took long time because of the officers who were in the war were both trained in the military academy in the United States so they had the same training techniques.
During the war there were many casualties but they used very high tactics, strategies and manipulation of their territories.
North is known to have won the war because of their economy which was not environmentally based.
In the north there were railroad links which were used to transport their uniforms and supplies.
In the north there were more immigration and larger population. North got support from different world powers.
