I think your answer is D.) Labor Unions although if this is incorrect please let me know so I can research more on the subject.
Answer:
Changing the planet’s Elliptical Orbit
Explanation:
Babylonia had three social classes: the awilu, an upper class consisting of free persons; the mushkenu, who were free individuals of low estate and the wardu, who were slaves. Babylonia was ruled by a king, assisted by nobles from the upper class of awilu.
