If the function $f(x) = x^5 + e^{x/5}$ and $g(x) = f^{-1}(x)$,then the value of $\frac{1}{g'(1 + e^{1/5})}$ is

  • A
    $5 + \frac{e^{1/5}}{5}$
  • B
    $5 + e^{1/5}$
  • C
    $1$
  • D
    $5 + \frac{5}{e}$

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