The best answer would be, B) Acting as a Supreme Court
A. Enlightenment
The caste system is exclusive to Hinduism in this case, Hinduism did not have one founder, and neither Buddhism or Hinduism sought to actively convert people into their religions. Both Hinduism and Buddhism, however, believed in rebirth and eventual enlightenment.
The Grange movement among farmers was similar to the labor unions because they both opposed and sought an end to coercive practices by the owners of capital. Farmers fought against monopoly in the form of railroad pricing. Labor unions fought against the owners of mills and factories. Cooperation, ownership of mills and factories, and political action through the election of representatives to state and federal office who were sympathetic to their platforms informed the Grange. The principles of cooperation, ownership of the means and modes of production, and political action informed both movements.