If $x^a y^b=e^m, x^c y^d=e^n, \Delta_1=\left|\begin{array}{ll}m & b \\ n & d\end{array}\right|, \Delta_2=\left|\begin{array}{ll}a & m \\ c & n\end{array}\right|, \Delta_3=\left|\begin{array}{ll}a & b \\ c & d\end{array}\right|$,then the values of $x$ and $y$ are respectively ($e$ is the base of natural logarithm).

  • A
    $e^{\frac{\Delta_1}{\Delta_3}}$ and $e^{\frac{\Delta_2}{\Delta_3}}$
  • B
    $e^{\frac{\Delta_2}{\Delta_3}}$ and $e^{\frac{\Delta_1}{\Delta_3}}$
  • C
    $\frac{\Delta_1}{\Delta_3}$ and $\frac{\Delta_2}{\Delta_3}$
  • D
    $\log \left(\frac{\Delta_1}{\Delta_3}\right)$ and $\log \left(\frac{\Delta_2}{\Delta_3}\right)$

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