Simplify the Rational Expression $\frac { ( x + 3 ) ( x - 8 ) + ( x + 3 ) ( x + 7 ) } { 3 ( x + 3 ) }$

Multiple Choice

Simplify the rational expression.
- $\frac { ( x + 3 ) ( x - 8 ) + ( x + 3 ) ( x + 7 ) } { 3 ( x + 3 ) }$

A) $\frac { 2 x - 1 } { 3 }$
B) $- \frac { 1 } { 3 }$
C) $2 x - 1$
D) $\frac { x - 1 } { 3 }$