If the function $f(x)$ is defined by $f(x) = \frac{x^{100}}{100} + \frac{x^{99}}{99} + \dots + \frac{x^2}{2} + x + 1$,then $f'(0) = $

  • A
    $100$
  • B
    $-1$
  • C
    $100 f'(0)$
  • D
    $1$

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