If I had written your question in English, I could have helped you
The correct answer would be A and D, I believe.
<span>This would be the incest taboo. Since exogamy is the concept of marrying outside one's own circle, the incest taboo and the general prohibition against marrying (or having relationships) within one's family or close circle helps to make sure that people propagate their genetics and characteristics as far as possible.</span>
it's unilluminated side is facing the earth aka being lit.
