question: Two triangles G J I and G K H are similar with a shared vertex G. K H and J I are parallel. Find K J if G J = 8, G H = 12, and H I = 4.
  Choices:
  A:2
  B:4
  C:6
  D:8
query_wo: Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
  Question: Two triangles G J I and G K H are similar with a shared vertex G. K H and J I are parallel. Find K J if G J = 8, G H = 12, and H I = 4.
  Choices:
  A:2
  B:4
  C:6
  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: Two triangles G J I and G K H are similar with a shared vertex G. K H and J I are parallel. Find K J if G J = 8, G H = 12, and H I = 4.
  Choices:
  A:2
  B:4
  C:6
  D:8
question_for_eval: Two triangles G J I and G K H are similar with a shared vertex G. K H and J I are parallel. Find K J if G J = 8, G H = 12, and H I = 4.
  Choices:
  A:2
  B:4
  C:6
  D:8