question: In \odot O, the diameter is 14, and \angle A O B is 80 degrees. Find the length of \widehat A B. Round to the nearest hundredth.
  Choices:
  A:7.63
  B:9.77
  C:11.13
  D:14.83
query_wo: Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
  Question: In \odot O, the diameter is 14, and \angle A O B is 80 degrees. Find the length of \widehat A B. Round to the nearest hundredth.
  Choices:
  A:7.63
  B:9.77
  C:11.13
  D:14.83
query_cot: Please first conduct reasoning, and then answer the question and provide the correct option letter, e.g., A, B, C, D, at the end.
  Question: In \odot O, the diameter is 14, and \angle A O B is 80 degrees. Find the length of \widehat A B. Round to the nearest hundredth.
  Choices:
  A:7.63
  B:9.77
  C:11.13
  D:14.83
question_for_eval: In \odot O, the diameter is 14, and \angle A O B is 80 degrees. Find the length of \widehat A B. Round to the nearest hundredth.
  Choices:
  A:7.63
  B:9.77
  C:11.13
  D:14.83