The question asks how good character (ezigbo agwa) is identified in written literature (akwukwo edere). In literary analysis, a character's moral qualities are revealed not by their name, wealth, or background, but by their actions, decisions, and behavior within the story.
The correct answer is Omume ya (his/her behavior/conduct). In Igbo literary criticism, as in literature worldwide, a character is judged as good or bad based on how they act - their deeds, choices, and how they treat others. The passage about Adaeze earlier in this exam illustrates this perfectly: Adaeze's good character was demonstrated through her compassionate actions (rescuing and raising an abandoned child), not through her name, wealth, or fame.
The other options are insufficient or incorrect: "Aku ya" (his/her wealth) measures material possessions, not moral character. "Aha ya" (his/her name) is merely an identifier and does not reveal inner qualities. "Ncheta" (memory/remembrance) relates to recollection and does not serve as a measure of character in literary analysis.