challenge: What is the total area of Berwyn, Nebraska, according to the United States Census Bureau?
  
  A. 0.50 square miles (1.3 km2)
  B. 0.15 square miles (0.39 km2)
  C. 0.26 square miles (0.67 km2)
  D. 0.35 square miles (0.91 km2)
  Answer: 