question: As shown in the figure, it is known that in circle O, the central angle angle AOB = 100.0, then the angle of circumference angle ACB is equal to ().
  Choices:
  A:130°
  B:120°
  C:110°
  D:100°
query_wo: Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
  Question: As shown in the figure, it is known that in circle O, the central angle angle AOB = 100.0, then the angle of circumference angle ACB is equal to ().
  Choices:
  A:130°
  B:120°
  C:110°
  D:100°
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: As shown in the figure, it is known that in circle O, the central angle angle AOB = 100.0, then the angle of circumference angle ACB is equal to ().
  Choices:
  A:130°
  B:120°
  C:110°
  D:100°
question_for_eval: As shown in the figure, it is known that in circle O, the central angle angle AOB = 100.0, then the angle of circumference angle ACB is equal to ().
  Choices:
  A:130°
  B:120°
  C:110°
  D:100°