$\text { If } A=\left[\begin{array}{ll}1 & 2 \\3 & 4\end{array}\right]$$\text { and } A B$$=\left[\begin{array}{cc}6 & 7 \\16 & 17\end{array}\right]$$\text {, then } B=\text { ? }$

$\left[\begin{array}{ll}4 & 2 \\1 & 3\end{array}\right]$

$\left[\begin{array}{ll}4 & 3 \\1 & 2\end{array}\right]$

$\left[\begin{array}{ll}4 & 1 \\3 & 2\end{array}\right]$

$\left[\begin{array}{ll}4 & 3 \\2 & 1\end{array}\right]$