challenge: What was the format change made to the 2. Bundesliga for the 1981-82 season?
  
  A. The league was expanded to include teams from the Regionalliga
  B. The league was divided into four regional divisions
  C. The Nord and Süd divisions were abolished to form a single-division league featuring 20 teams
  D. The league was reduced to 16 teams
  Answer: 