A female gymnast wearing a red leotard on a balance beam with arms raised over her head .
It is impossible that an American gymnast competes in the balance beam event at the Olympics .
It is impossible that an American gymnast competes in the balance beam event at the Olympics .
Chances are about even that an American gymnast competes in the balance beam event at the Olympics .
An American gymnast competes in the balance beam event at the Olympics .