If $\lim _{x \rightarrow 0} \frac{e^{2 x}-1}{5 x}=l$ and $\lim _{x \rightarrow 1} \frac{2}{x-1} \log x=m$,then the cubic equation whose roots are $5l, m$,and $1$ is:

  • A
    $x^3-3 x^2+2=0$
  • B
    $x^3+5 x^2-8 x+2=0$
  • C
    $x^3-5 x^2+8 x-4=0$
  • D
    $x^3+3 x^2-4=0$

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