Multiple choice Which of the following was of highest importance in regard to the caste system? Moving to a higher level of caste interacting with people of different castes adhering to the strict rules of the caste helping lower caste people move up. Reveal answer Fill a bubble to check yourself C Correct answer Explanation The caste system was defined by rigid social rules. Adhering to these rules, such as those regarding occupation and marriage, was of the highest importance to maintain social order.