I would believe it would be by the people
The 13th, 14th, and 15th Amendments focused on giving past slaves rights, particularly voting rights.
Jim Crow laws and Black Codes were ways the Southern states responded to these Amendments, as they wanted to keep their way of life intact. Jim Crow laws were meant to segregate blacks and whites from each other. They essentially made it easier for the South to continue to treat African Americans harshly. The Black Codes were harsher and made it so black people could be arrested for basically no reason and they could not leave their jobs, even if they wanted to.
Poll taxes and literacy tests were more ways the South state responded. Poll taxes were put on voting polls, in order to stop African Americans from voting. Black people during this time had a hard time getting a job and were paid less, so many could not afford to pay for polling. Literacy tests were also very harsh on African Americans. Since many, did not and could not receive a proper education, they would fail the literacy tests and not be able to vote.
The Soviets were proclaiming themselves as communist, though the reality was not as the communism truly says a state should be run. If the Soviets practiced the textbook communism, then everyone in the society would have been equal. Everyone was going to earn the same amount of money and get the same things necessary for life without any problem. The economy would have been self-sustaining and that was going to be supported by excellent planning. There were not going to be social classes, but everyone would have been in the same class. The Soviets did pretty much everything wrong with those ideas, and in all fairness the human nature just doesn't allow for something like that to exist.
Mikhail Gorbachev was hated by the hardline communist. The main reason for that was that he was trying to make the country slightly more liberal, more open to the world and to modernization. That was seen as treason of the communist ideology by the hardline communist so they were against all of that.
The answer to this question is: B) <span>They could haul heavy goods and people more quickly.</span>
