challenge: What is the total area of the town of Sawpit, Colorado, according to the United States Census Bureau?
  
  A. 0.080 square miles (0.031 km2)
  B. 0.080 square kilometers (0.031 mi2)
  C. 0.031 square kilometers (0.080 mi2)
  D. 0.031 square miles (0.080 km2)
  Answer: 