Answer:
A creeping bombardment, first used at the Battle of the Somme, involved artillery fire going forward in phases only ahead of the advancing infantry. ... To work, both the heavy artillery and the infantry required correct timing of the tactic. Failure to do this would result in their own troops being killed by artillery.
The African Americans helped out the war majorly throughout that time period. They participated in protest marches and also tried to join the forces with blacks to fight for freedom.
Economically it had a positive impact on the South, it allowed their economy not to be solely reliant on agriculture. However, as far as their society goes there wasn't a change in their belief system in their stance on African Americans. Many still considered them as second citizens until the Civil Rights Movement.
It's B, i<span>t caused high civilian casualties but did not result in surrender.</span>
