One of the answers that could fit in the blank is better.
Hope this clarifies your doubt.
Did you have any answer choices or was it free response?
free response: He should read more carefully and take notes on the important details.
Answer:
The answer is "to demonstrate that narrator's difficulty adapting to American society".
Explanation:
Lensey Namioka's "The All-American Slurp" is a story. A migrant family's uncomfortable experiences in a foreign state are recounted. As just a consequence, "Lakeview" was an expensive chain restaurant. Aside from Chinese restaurants, it was rare for all the customers to make at such establishments in America. Again for the narrator's struggles to adjust to American society, this was necessary to include the details. However, they found it hard to adapt.