If $\int \frac{x^2-x+2}{x^2+x+2} d x=x-\log (f(x))+\frac{2}{\sqrt{7}} \operatorname{Tan}^{-1}(g(x))+c$, then $\mathrm{f}(-1)+\sqrt{7} \mathrm{~g}(-1)=$

• Correct answer
  A

  $1$
• B

  $0$
• C

  $-1$
• D

  $2$

Hence, the correct answer is option: 'A'.