challenge: What was Luis Liendo's achievement at the 2011 Pan American Games in Guadalajara, Mexico?
  
  A. He won a silver medal in the 60 kg division
  B. He defeated a Mexican wrestler for the gold medal in the 60 kg division
  C. He won a bronze medal in the 60 kg division
  D. He defeated United States wrestler Joe Betterman for the gold medal in the 60 kg division
  Answer: 