Evaluate the Expression A) $$\left[ \begin{array} { c c } 15 & 16 \\8 & 20\end{array} \right]$$

Multiple Choice

Evaluate the expression. $$\left[ \begin{array} { c c } 3 & - 4 \\- 1 & 5\end{array} \right] \left[ \begin{array} { l l } - 5 & 2 \\- 4 & 1\end{array} \right] \left[ \begin{array} { c c } - 1 & - 2 \\2 & 4\end{array} \right]$$

A) $$\left[ \begin{array} { c c } 15 & 16 \\8 & 20\end{array} \right]$$
B) $$\left[ \begin{array} { c c } 3 & 6 \\21 & 42\end{array} \right]$$
C) not possible
D) $$\left[ \begin{array} { r r } 27 & - 72 \\- 2 & - 20\end{array} \right]$$
E) $$\left[ \begin{array} { l l } 3 & 21 \\6 & 42\end{array} \right]$$