Is she a she or a he?

She is a South African teenager who has come out of nowhere and sprinted to the top in the world championships. She will be forced to take a test to prove she is a woman after storming to victory Wednesday in the 800-meter sprint at the world championships. Although medals will be awarded for the 800, the race remains under a cloud until the investigation is closed, and Semenya could be stripped of the gold depending on the test results.