If $f(x) = \sqrt{x^2 + 1}$, $g(x) = \frac{x + 1}{x^2 + 1}$, and $h(x) = 2x - 3$, then find the value of $f'(h'(g'(x)))$.

  • A
    $0$
  • B
    $\frac{1}{\sqrt{x^2 + 1}}$
  • C
    $\frac{2}{\sqrt{5}}$
  • D
    $\frac{x}{\sqrt{x^2 + 1}}$

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