Answer:
Okeke wants to see his grandsons even though they are not the product of a traditional arranged marriage.
Step-by-step explanation:
According to the book Marriage is a private affair by China Achebe, the change in Okeke's attitude challenges the patriarchy because he wants to see his grandsons even though they are not the product of a traditional arranged marriage.
Based on the book, Okeke is a patriarch who wants things done in the traditional way and when his son goes against his wishes and marries someone from another tribe, he washes his hands from his son and family but later on there is a change of attitude as he wants to see his grandsons even though the marriage is not one he supported.