The solution of $x \frac{dy}{dx} = y + x e^{y/x}$ with $y(1) = 0$ is

  • A
    $e^{y/x} + \log x = 1$
  • B
    $e^{-y/x} = \log x$
  • C
    $e^{-y/x} + 2 \log x = 1$
  • D
    $e^{-y/x} + \log x = 1$

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