challenge: What event did Nader Moradi win the gold medal in at the 2012 Summer Paralympics?
  
  A. Men's 80 kg (180 lb) powerlifting
  B. Men's 70 kg (150 lb) powerlifting
  C. Men's 50 kg (110 lb) powerlifting
  D. Men's 60 kg (130 lb) powerlifting
  Answer: 