PART A: How does the section “Economic Challenges” contribute to the development of ideas in the text (Paragraphs 10-12)? A. It shows how the economic issues that Native Americans face on reservations result in several other related problems. B. It emphasizes the need for additional jobs to be available on reservations so families are not separated. C. It proves that the reservations need additional funding from the U. S. government to fulfill their basic needs. D. It shows that not all reservations across the country are struggling, and that quality of life can vary dramatically.