Answer:
b there was often great cruelty and massacres on both sides.
Explanation:
The American Civil War caused negative impacts on both the Northern and Southern states. Both the parties were not in the position to handle the civil war. The economic differences hampered the northern and southern regions and limited the growth of the country. The advent and the end of the Civil War brought negative effects and cruelty in both the sides. Massacre and unpleasant environment effected the countries.