The correct answer is B.
The main objective of socialist and communist economic systems was to achieve economic and income equality among all members of society.
In order to ensure so, goverment would intervene in every aspect of the the economy, everybody would have a job position and earn an equal salary and all the property will be public (therefore, private properties had to be nacionalized).
The north seemed to gain more of its goals. The balance of the senate was now with the free states . The major victory for the south was the Fugitive Slave Law (FSL). In the end the north refused to enforce it.