question: There is an isosceles triangle with side length 13 and base length 10. Find the area of the figure.
  Choices:
  A:30
  B:60
  C:120
  D:240
query_wo: Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
  Question: There is an isosceles triangle with side length 13 and base length 10. Find the area of the figure.
  Choices:
  A:30
  B:60
  C:120
  D:240
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: There is an isosceles triangle with side length 13 and base length 10. Find the area of the figure.
  Choices:
  A:30
  B:60
  C:120
  D:240
question_for_eval: There is an isosceles triangle with side length 13 and base length 10. Find the area of the figure.
  Choices:
  A:30
  B:60
  C:120
  D:240