Evaluate the Determinant $\left| \begin{array} { r r } 1 & 1 \\ - 6 & - 4 \end{array} \right|$

Multiple Choice

Evaluate the determinant.
- $\left| \begin{array} { r r } 1 & 1 \\ - 6 & - 4 \end{array} \right|$

A) 2
B) $- 10$
C) $- 2$
D) $- 23$