question: As shown in the figure, in triangle ABC, AB = AC, passing point A to draw AD parallel BC. If angle 1 = 70.0, then the size of angle BAC is ()
  Choices:
  A:40°
  B:30°
  C:.70°
  D:50°
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 triangle ABC, AB = AC, passing point A to draw AD parallel BC. If angle 1 = 70.0, then the size of angle BAC is ()
  Choices:
  A:40°
  B:30°
  C:.70°
  D:50°
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 triangle ABC, AB = AC, passing point A to draw AD parallel BC. If angle 1 = 70.0, then the size of angle BAC is ()
  Choices:
  A:40°
  B:30°
  C:.70°
  D:50°
question_for_eval: As shown in the figure, in triangle ABC, AB = AC, passing point A to draw AD parallel BC. If angle 1 = 70.0, then the size of angle BAC is ()
  Choices:
  A:40°
  B:30°
  C:.70°
  D:50°