Final answer:
Achebe included the story of Mrs. Ochuba in "Marriage is a Private Affair" to emphasize the cultural clash between generations and explore the complexities of navigating cultural traditions and personal desires.
Step-by-step explanation:
In "Marriage is a Private Affair," Achebe included the story of Mrs. Ochuba to emphasize the cultural clash between generations. The protagonist, Nnaemeka, is faced with the conflict between his traditional family's expectations of an arranged marriage and his love for his chosen partner. Mrs. Ochuba's story serves as an example of the older generation's resistance to change and their adherence to traditional beliefs and customs. Through this story, Achebe explores the complexities of navigating cultural traditions and personal desires.