1) Nnaemeka wanted to marry Nene, but his father Okeke disobeys his request which brings a conflict between son and father
2)At the beginning of the story, Nnaemeka explains how city values and village values are different. He tells Nene how writing a letter to Father would make Father's heart break as he(father) believes only in traditional values.
So, the answer is I & III. Hope it helps!