question: Use a sector paper sheet with a central angle of 120.0 and a radius of 6.0 to roll into a conical bottomless paper cap, then the bottom perimeter of the paper cap is ()
  Choices:
  A:2πcm
  B:3πcm
  C:4πcm
  D:5πcm
query_wo: Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
  Question: Use a sector paper sheet with a central angle of 120.0 and a radius of 6.0 to roll into a conical bottomless paper cap, then the bottom perimeter of the paper cap is ()
  Choices:
  A:2πcm
  B:3πcm
  C:4πcm
  D:5πcm
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: Use a sector paper sheet with a central angle of 120.0 and a radius of 6.0 to roll into a conical bottomless paper cap, then the bottom perimeter of the paper cap is ()
  Choices:
  A:2πcm
  B:3πcm
  C:4πcm
  D:5πcm
question_for_eval: Use a sector paper sheet with a central angle of 120.0 and a radius of 6.0 to roll into a conical bottomless paper cap, then the bottom perimeter of the paper cap is ()
  Choices:
  A:2πcm
  B:3πcm
  C:4πcm
  D:5πcm