Final answer:
The author included this passage to introduce the idea that modern-day Acomas must persist against new forms of ongoing oppression.
Step-by-step explanation:
The author included this passage to A) introduce the idea that modern-day Acomas must persist against new forms of ongoing oppression. The passage highlights the challenges faced by the Acoma tribe, such as dealing with the U.S. government, poverty, alcoholism, and unemployment. It also mentions the forcible sending of Acoma children to boarding schools, where they were punished for speaking their native language. However, nowadays, the traditional language is taught to all Acoma children at the local schools, showcasing the tribe's resilience in preserving their language and cultural heritage.