Correct answer: B. To break the will of the Confederacy's citizens.
Explanation:
General Sherman's "March to the Sea" was a march of a fighting force of around 60,000 men, going from Atlanta to Savannah, Georgia (a distance of 285 miles). It was intended as a show of force, to intimidate. They did not burn everything in sight, but did burn the houses and barns of any people who tried to resist them or fight back.