question: As shown in the figure, arc AB = arc BC = arc CD, if angle BEC = 110.0, then angle BDC = ()
  Choices:
  A:35°
  B:45°
  C:55°
  D:70°
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, arc AB = arc BC = arc CD, if angle BEC = 110.0, then angle BDC = ()
  Choices:
  A:35°
  B:45°
  C:55°
  D:70°
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, arc AB = arc BC = arc CD, if angle BEC = 110.0, then angle BDC = ()
  Choices:
  A:35°
  B:45°
  C:55°
  D:70°
question_for_eval: As shown in the figure, arc AB = arc BC = arc CD, if angle BEC = 110.0, then angle BDC = ()
  Choices:
  A:35°
  B:45°
  C:55°
  D:70°