challenge: What was the outcome of George Hicks' attempt to play for Birmingham after sustaining a serious knee injury in the 1930-31 season?
  
  A. He was forced to retire from football due to the injury
  B. He made a successful comeback and played for several more seasons
  C. He fully recovered and continued to play for Birmingham
  D. He played one more game, but it marked the end of his Birmingham career
  Answer: 