Add and Subtract Matrices
-Let $\mathrm { A } = \left[ \begin{array} { r r r } 2 & 4 & 1 \\ 4 & 2 & - 1 \\ - 1 & 2 & 3 \end{array} \right]$

Multiple Choice

Add and Subtract Matrices
-Let $\mathrm { A } = \left[ \begin{array} { r r r } 2 & 4 & 1 \\ 4 & 2 & - 1 \\ - 1 & 2 & 3 \end{array} \right]$ and $\mathrm { B } = \left[ \begin{array} { r r r } 3 & - 4 & 1 \\ - 1 & 0 & 2 \\ 0 & 3 & - 2 \end{array} \right]$ . Find $\mathrm { A } + \mathrm { B }$ .

A)
$\left[ \begin{array} { r r r } 5 & 0 & 2 \\ 3 & 2 & 1 \\ - 1 & 5 & 1 \end{array} \right]$
B)
$\left[ \begin{array} { r r r } 3 & - 8 & 2 \\ 5 & 2 & 1 \\ - 1 & 5 & 1 \end{array} \right]$
C)
$\left[ \begin{array} { r r r } 3 & - 8 & 2 \\ 3 & 2 & - 3 \\ 1 & 5 & 1 \end{array} \right]$
D)
$\left[ \begin{array} { r r r } 5 & 0 & 2 \\ 5 & 2 & - 3 \\ 1 & 5 & 1 \end{array} \right]$