challenge: What types of events are included in the South East Asian Table Tennis Championships?
  
  A. Men's and Women's Doubles, Mixed Doubles
  B. Men's and Women's Singles, Men's, Women's, and Mixed Doubles, and Men's and Women's Team
  C. Men's and Women's Singles, Men's and Women's Doubles
  D. Men's and Women's Singles, Men's and Women's Team
  Answer: 