$\mathbf{A}=\left[\begin{array}{rr}1 & 2 \\4 & -3\end{array}\right], \mathbf{B}=\left[\begin{array}{ll}3 & 4 \\6 & 7\end{array}\right]$ হলে, A - B = কত?

$\left[\begin{array}{cc}2 & 2 \\2 & 10\end{array}\right]$

$\left[\begin{array}{cc}-2 & 2 \\2 & -10\end{array}\right]$

$\left[\begin{array}{cc}-2 & -2 \\-2 & -10\end{array}\right]$

$\left[\begin{array}{rr}-2 & -2 \\-2 & 10\end{array}\right]$