"If the ruling dynasty was wealthy, it would keep the Mandate of Heaven" is the best answer from the list, but it should be noted this was not always the case.
“The Diversity in the faculties of men”. “The protection of these faculties is the first object of government”. the same. “As long as the reason of man continues fallible, and he is at liberty to exercise it, different opinions will be formed.”
Why did the south pass Slave codes ?
Since the colonial period, colonies and states had passed laws that discriminated against free Blacks. In the South, these were generally included in "slave codes"; the goal was to reduce the influence of free blacks (particularly after slave rebellions) because of their potential influence on slaves.