challenge: How did Belgium qualify a boat in the men's single sculls for the 2016 Summer Olympics?
  
  A. By finishing in the top three at the 2016 European & Final Qualification Regatta in Lucerne, Switzerland
  B. By winning the 2016 World Rowing Championships
  C. By receiving a wild card invitation from the International Olympic Committee
  D. By defeating the reigning Olympic champion in a special qualification match
  Answer: 