question: As shown in the figure, BC and BA intersect at point B, BD bisects angle ABC, CD parallel AB, if angle BCD = 70.0, then the degree of angle CDB is ()
  Choices:
  A:55°
  B:50°
  C:45°
  D:30°
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, BC and BA intersect at point B, BD bisects angle ABC, CD parallel AB, if angle BCD = 70.0, then the degree of angle CDB is ()
  Choices:
  A:55°
  B:50°
  C:45°
  D:30°
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, BC and BA intersect at point B, BD bisects angle ABC, CD parallel AB, if angle BCD = 70.0, then the degree of angle CDB is ()
  Choices:
  A:55°
  B:50°
  C:45°
  D:30°
question_for_eval: As shown in the figure, BC and BA intersect at point B, BD bisects angle ABC, CD parallel AB, if angle BCD = 70.0, then the degree of angle CDB is ()
  Choices:
  A:55°
  B:50°
  C:45°
  D:30°