question: then the height of the flagpole AC is ()
  Choices:
  A:6m
  B:7m
  C:8.5m
  D:9m
query_wo: Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
  Question: then the height of the flagpole AC is ()
  Choices:
  A:6m
  B:7m
  C:8.5m
  D:9m
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: then the height of the flagpole AC is ()
  Choices:
  A:6m
  B:7m
  C:8.5m
  D:9m
question_for_eval: then the height of the flagpole AC is ()
  Choices:
  A:6m
  B:7m
  C:8.5m
  D:9m