Answer:
He receives a letter from Nene (not in the options)
Explanation:
According to the book, "Marriage is a Private Affair" by Chinua Achebe, the story of Nnaemeka and his relationship with his father Okeke, over his decision to marry Nene, who is neither from their village or of the same tribe- Ibo. Okeke tries everything to dissuade his son, but when his son goes ahead to marry Nene, he refuses to speak his son for eight years.
However, Nnaemeka's father learns of his two grandsons when he receives a letter from Nene, his daughter-in-law that his grandchildren want to see him.
