Answer:
Du Bois certainly is an important thinker, but a poet? Yes, a poet
The option that best describes the cause-and-effect structure in a memoir is when the structure focuses on an incident and its consequences.
I would say that the correct option is the third one.
The cause is the incident, and the effect are its consequences.
The death of Curly is an example of the law of club and fang. He learns that violence doesn't just come from men with clubs, it also comes from dogs with fangs.
I think the correct answer would be D. It makes the most sense to me!