As Sherman's Troops Marched Across the South, Thousands of Slaves

As Sherman's troops marched across the South, thousands of slaves joined them, so the troops

A) provided the slaves with food, clothing, and medical care.
B) didn't give the slaves anything but allowed them to march north with them.
C) gave whatever supplies they could spare to the slaves and left them behind.
D) refused to take the slaves north with them.