question: As shown in the figure, rotate triangle ABC around the line where AC is located to obtain a rotating body, then the lateral area of ​​the rotating body is ()
  Choices:
  A:12π
  B:15π
  C:30π
  D:60π
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, rotate triangle ABC around the line where AC is located to obtain a rotating body, then the lateral area of ​​the rotating body is ()
  Choices:
  A:12π
  B:15π
  C:30π
  D:60π
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, rotate triangle ABC around the line where AC is located to obtain a rotating body, then the lateral area of ​​the rotating body is ()
  Choices:
  A:12π
  B:15π
  C:30π
  D:60π
question_for_eval: As shown in the figure, rotate triangle ABC around the line where AC is located to obtain a rotating body, then the lateral area of ​​the rotating body is ()
  Choices:
  A:12π
  B:15π
  C:30π
  D:60π