challenge: What is the primary focus of the 1980s work of Knut Odner on Sámi ethnogenesis?
  
  A. To establish the exact timing of the Sámi arrival in northern Scandinavia
  B. To emphasize the role of dramatic migrations in shaping Sámi identity
  C. To promote perspectives on Sámi ethnogenesis inspired by Fredrik Barth and Pierre Bourdieu
  D. To argue that the Sámi people were unchanging subjects of ethnography
  Answer: 