Let $f:R \to R$ be such that $f(1) = 3$ and $f'(1) = 6$. Then $\lim_{x \to 0} \left\{ \frac{f(1 + x)}{f(1)} \right\}^{\frac{1}{x}}$ equals

  • A
    $1$
  • B
    $e^{1/2}$
  • C
    $e^2$
  • D
    $e^3$

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