$\int \left( \frac{x^2+1}{(x+1)^2} \right) e^x \, dx = \text{ . . . . . . }$.

  • A
    $\left( \frac{x-1}{x+1} \right) e^x + c$
  • B
    $\left( \frac{x^2+1}{x+1} \right) e^x + c$
  • C
    $\left( \frac{x+1}{x-1} \right) e^x + c$
  • D
    $\left( \frac{x^2-1}{x+1} \right) e^x + c$

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