Answer:
D) rebuilding the southern economy
Step-by-step explanation:
The main goal of the Reconstruction was to reform the economic, social and political outset of the Southern states. First, the economy of the Southern states was not diverse and depended on farming which would drive the newly free African Americans to work at the same place they worked as slaves.
The Union had a plan that allowed the Southern States to form new governments and pass new states constitutions and elect new representatives, but now the African Americans also had the right to vote and participate.