SARAH DID SO WELL IN THE DANCE-SPORTS CONTEST THAT SHE COULD HAVE...

14. Sarah did so well in the dance-sports contest that she could have won the first prize. A. Sarah performed very well in the dance-sports contest and she won the first prize. B. If Sarah performed well in the dance-sports contest, she could have won the first prize. C. Sarah didn't win the first prize although she performed very well in the dance-sports contest. D. Sarah didn't perform very well in the dance-sports contest , so she didn't win the first prize.