question: The graph of $f(x)=\ln x$ (gray) and $g(x)$ (black) is drawn below. $g(x)$ is a transformation of $f(x)$.
  
  What sort of transformation is $g(x)$ of $f(x)$ ?
  Choices:
  A:Vertical dilation
  B:Vertical translation
  C:Reflection
  D:Horizontal translation
query_wo: Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
  Question: The graph of $f(x)=\ln x$ (gray) and $g(x)$ (black) is drawn below. $g(x)$ is a transformation of $f(x)$.
  
  What sort of transformation is $g(x)$ of $f(x)$ ?
  Choices:
  A:Vertical dilation
  B:Vertical translation
  C:Reflection
  D:Horizontal translation
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: The graph of $f(x)=\ln x$ (gray) and $g(x)$ (black) is drawn below. $g(x)$ is a transformation of $f(x)$.
  
  What sort of transformation is $g(x)$ of $f(x)$ ?
  Choices:
  A:Vertical dilation
  B:Vertical translation
  C:Reflection
  D:Horizontal translation
question_for_eval: The graph of $f(x)=\ln x$ (gray) and $g(x)$ (black) is drawn below. $g(x)$ is a transformation of $f(x)$.
  
  What sort of transformation is $g(x)$ of $f(x)$ ?
  Choices:
  A:Vertical dilation
  B:Vertical translation
  C:Reflection
  D:Horizontal translation