A) he uses irony because it is not actually virtuous or excellent to kill
The right answer is the mandate to marry within one's tribe. Even though Nnaemeka knew that his decision to marry a woman from another tribe would upset his father, he thought that his annoyance would eventually pass away. But he had not realized that his was a decision without precedent, and this caused surprise, indignation, and sadness among his people, who, stuck to tradition, saw in Nnaemeka's act a reflection of their Lord's cautionary teachings ("Sons shall rise against their fathers") and a bad omen ("It is the beginning of the end"), hence illustrating their conviction in the mandate to marry within one's tribe.
The correct answer is C, regionalism
Regionalism is writing in such a way as to convey the "local color" of a place. In this excerpt, the characteristics of the speaker's hometown are conveyed by the way he speaks, or his dialect.
To be completely honest with you I really don’t know