According to the description, we can see that Abeeba is a very strong and corpulent woman, unlike her husband. The author decided to give a wife so different from her husband so that it would be possible for her to bring about the changes he could not bring about.
Although you have not shown the text to which this question refers, we can state, through the context of your question, that you are referring to "The Prophet of Zongo Street."
By reading this story, we can see that:
At first, the reader may wonder why the author gave a wife to Mallam Sile, so different from him. However, this difference between the two is essential to establish very important changes in history.
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