Given that $A^{-1}=\frac{1}{7}\left[\begin{array}{cc}2& 1\\ -3& 2\end{array}\right],$ matrix $A$ is : $($A$)7\left[\begin{array}{cc}2& -1\\ 3& 2\end{array}\right]($B$)\left[\begin{array}{cc}2& -1\\ 3& 2\end{array}\right]($C$)\frac{1}{7}\left[\begin{array}{cc}2& -1\\ 3& 2\end{array}\right]($D$)\frac{1}{49}\left[\begin{array}{cc}2& -1\\ 3& 2\end{array}\right]$