The derivative of $F(x) = \int_{x^2}^{x^3} \frac{1}{\log t} \, dt$,$(x > 0)$ is

  • A
    $\frac{1}{3\log x} - \frac{1}{2\log x}$
  • B
    $\frac{1}{3\log x}$
  • C
    $\frac{3x^2}{3\log x}$
  • D
    $(\log x)^{-1} \cdot x(x - 1)$

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