Zhang Xiaomeng, Wang Bing, Li Ping and Xu Xiaomei, senior three students of Beishan No. 1 middle school, have entered the top eight of the school's badminton Torch Cup competition; A said, Wang Bing, Li Ping is the best hope to win the championship. B said: Wang Bing, Li Ping can't win the championship at all. C said: Zhang Xiaomeng is in a bad mental state today, and she can't win the championship. Ding said: Xu Xiaomei can win the gold medal. the result is unknown. Only one person guessed right.
the winner of the Torch Cup competition?
Zhang Xiaomeng.