question: There is a right triangle A B F on top of a rectangle C D E F. \angle C F D is labeled as \angle 2. Find m \angle 2.
  Choices:
  A:39
  B:42
  C:48
  D:51
query_wo: Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
  Question: There is a right triangle A B F on top of a rectangle C D E F. \angle C F D is labeled as \angle 2. Find m \angle 2.
  Choices:
  A:39
  B:42
  C:48
  D:51
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 a right triangle A B F on top of a rectangle C D E F. \angle C F D is labeled as \angle 2. Find m \angle 2.
  Choices:
  A:39
  B:42
  C:48
  D:51
question_for_eval: There is a right triangle A B F on top of a rectangle C D E F. \angle C F D is labeled as \angle 2. Find m \angle 2.
  Choices:
  A:39
  B:42
  C:48
  D:51