challenge: What was George Andrew Reisner's initial interpretation of Kerma's purpose when it was first excavated in the 1920s?
  
  A. A fort of an Egyptian governor that evolved into an independent Kerma kingdom
  B. A minor agricultural settlement on the outskirts of ancient Egypt
  C. A major city in the ancient Egyptian empire
  D. A major trading hub between ancient Egypt and other civilizations
  Answer: 