What was the purpose of the Underground Railroad? O A. To help slave owners recover fugitive slaves
O B. To transport goods from the North to the South
O C. To help enforce the slave codes
D. To help slaves escape from the South

D

Explanation:

Slaves were in great danger so in order to help, an underground railroad was made.  

D

Explanation:

the underground railroad was run by many freed slaves and several white people who didn't believe in slavery

Joseph Stalin believed he needed absolute authority in the USSR in order to "unite the country and make it strong". Hope it helps!