challenge: What are the two categories of play in the Pan American Wheelchair Handball Championship?
  
  A. 7 versus 7 and 4 versus 4 players
  B. 6 versus 6 and 3 versus 3 players
  C. 8 versus 8 and 5 versus 5 players
  D. 5 versus 5 and 3 versus 3 players
  Answer: 