question: As shown in the figure, in the quadrilateral ABCD, E and F are the midpoints of AB and AD respectively. If EF = 2.0, BC = 5.0, CD = 3.0, then tanC is equal to ()
  Choices:
  A:\frac{3}{4}
  B:\frac{4}{3}
  C:\frac{3}{5}
  D:\frac{4}{5}
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, in the quadrilateral ABCD, E and F are the midpoints of AB and AD respectively. If EF = 2.0, BC = 5.0, CD = 3.0, then tanC is equal to ()
  Choices:
  A:\frac{3}{4}
  B:\frac{4}{3}
  C:\frac{3}{5}
  D:\frac{4}{5}
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, in the quadrilateral ABCD, E and F are the midpoints of AB and AD respectively. If EF = 2.0, BC = 5.0, CD = 3.0, then tanC is equal to ()
  Choices:
  A:\frac{3}{4}
  B:\frac{4}{3}
  C:\frac{3}{5}
  D:\frac{4}{5}
question_for_eval: As shown in the figure, in the quadrilateral ABCD, E and F are the midpoints of AB and AD respectively. If EF = 2.0, BC = 5.0, CD = 3.0, then tanC is equal to ()
  Choices:
  A:\frac{3}{4}
  B:\frac{4}{3}
  C:\frac{3}{5}
  D:\frac{4}{5}