Black slave who served in the colonial army as a spy

Why did leaders such as siddhartha gautama abandon hinduism to createbuddhism around 500 bce:

The plantation economy in the south produced a. equal opportunity for all whites and no illiteracy. b. low profits despite the enslavement of a great number of people. c. great profits and developed great educational institutions. d. great profits at the expense of cultural development and equal opportunity.

Not among the fundamental principles of romans catholicism.