challenge: What is the 2011–12 Hong Kong League Cup?
  
  A. A knockout competition for all the teams of the 2011–12 Hong Kong Second Division League
  B. A knockout competition for all the teams of the 2011–12 Hong Kong First Division League
  C. A friendly tournament for teams from Hong Kong and mainland China
  D. A round-robin competition for all the teams of the 2011–12 Hong Kong First Division League
  Answer: 