Transpose of a Matrix

If $A=\left[\begin{array}{ll}1& 2\\ 3& 0\end{array}\right], B=\left[\begin{array}{ll}3& 4\\ 1& 6\end{array}\right]$ then, which of the following statements is true.

If $A=\left[\begin{array}{cc}2& -1\\ -7& 4\end{array}\right]$ and $B=\left[\begin{array}{cc}4& 1\\ 7& 2\end{array}\right]$, then which statement is true?

If $A=\left[\begin{array}{ll}1& 2\\ 3& 0\end{array}\right]$ and $B=\left[\begin{array}{ll}3& 4\\ 1& 6\end{array}\right]$, then ${\left(AB\right)}^T$ equals