challenge: Which of the following accurately describes Carsten Sänger's career after the German reunification?
  
  A. He continued playing only for FC Rot-Weiß Erfurt.
  B. He played in the 1. Bundesliga for multiple clubs.
  C. He had to end his career following a lower leg amputation from a car accident.
  D. He retired due to a knee injury.
  Answer: 