Evaluate the Rational Function $$r ( x ) = \frac { 17 } { x ^ { 2 } - 9 x + 20 } , r ( - 8 )$$

Multiple Choice

Evaluate the rational function.
- $$r ( x ) = \frac { 17 } { x ^ { 2 } - 9 x + 20 } , r ( - 8 )$$

A) Undefined
B) $\frac { 17 } { 156 }$
C) $\frac { 1 } { 78 }$
D) $- \frac { 17 } { 156 }$