Santhi Soundarajan Won a Silver Metal in the 2006 Pan

Santhi Soundarajan won a silver metal in the 2006 Pan Asian Games.Why did she later have her metals recalled?

A) She was a cross-dresser who pretended to be female.
B) She was a female who had a Y chromosome without knowing about the genetic condition.
C) She used performance enhancing drugs that altered her genetic structure.
D) She was genetically altered at birth to create a faster runner.
E) Her government gave her a sex change in order to hide the fact that she was really a male.