Evaluate the Determinant of the Matrix Below $\left[ \begin{array} { c c c c } 1 & 4 & 6 & - 7 \\0 & - 4 & - 4 & - 1 \\0 & 0 & - 3 & - 6 \\0 & 0 & 0 & 5\end{array} \right]$

Multiple Choice

Evaluate the determinant of the matrix below. $\left[ \begin{array} { c c c c } 1 & 4 & 6 & - 7 \\0 & - 4 & - 4 & - 1 \\0 & 0 & - 3 & - 6 \\0 & 0 & 0 & 5\end{array} \right]$

A) -9
B) 1
C) -1
D) 60
E) 32