Find the Dimension of the Matrix $$\left[ \begin{array} { r r r r r } - 6 & 1 & - 7 & 8 & - 4 \\- 1 & 9 & 6 & - 7 & - 8 \\7 & 2 & - 8 & 6 & 1\end{array} \right]$$

Multiple Choice

Find the dimension of the matrix.
- $$\left[ \begin{array} { r r r r r } - 6 & 1 & - 7 & 8 & - 4 \\- 1 & 9 & 6 & - 7 & - 8 \\7 & 2 & - 8 & 6 & 1\end{array} \right]$$

A) $3 \times 5$
B) $- 6,1 , - 7,8 , - 4 , - 1,7$
C) 15
D) $5 \times 3$