$A=\left[\begin{array}{rr}1 & 5 \\-3 & 2\end{array}\right]$ এবং $I=\left[\begin{array}{ll}1 & 0 \\0 & 1\end{array}\right]$ হলে $\mathrm{IA}=\text { ? }$

$\left[\begin{array}{rr}6 & 0 \\0 & -1\end{array}\right]$

$\left[\begin{array}{rr}1 & -3 \\5 & 2\end{array}\right]$

$\left[\begin{array}{cc}5 & 0 \\0 & -6\end{array}\right]$

$\left[\begin{array}{rr}1 & 5 \\-3 & 2\end{array}\right]$