question: As shown in the figure, angle BAC + angle EAD = 180.0, then the radius of circle A is ()
  Choices:
  A:10
  B:6
  C:5
  D:8
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, angle BAC + angle EAD = 180.0, then the radius of circle A is ()
  Choices:
  A:10
  B:6
  C:5
  D:8
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, angle BAC + angle EAD = 180.0, then the radius of circle A is ()
  Choices:
  A:10
  B:6
  C:5
  D:8
question_for_eval: As shown in the figure, angle BAC + angle EAD = 180.0, then the radius of circle A is ()
  Choices:
  A:10
  B:6
  C:5
  D:8