challenge: Where is Davisville, Missouri, located?
  
  A. In the Mark Twain National Forest, approximately 13 miles southeast of Steelville
  B. In the Ha Ha Tonka State Park, approximately 10 miles southwest of Camdenton
  C. In the Katy Trail State Park, approximately 5 miles north of Columbia
  D. In the Ozark National Forest, approximately 20 miles northwest of Springfield
  Answer: 