challenge: What was the outcome of the Court of Arbitration for Sport's ruling regarding Johann Mühlegg's gold medals in December 2003?
  
  A. Mühlegg's gold medals from the first two races were withdrawn
  B. Mühlegg was allowed to keep all his gold medals
  C. Mühlegg was stripped of all his Olympic medals
  D. The case was dismissed due to lack of evidence
  Answer: 