Perform the Indicated Operation $\frac { 5 } { x + 7 } + \frac { 3 } { x - 4 }$

Multiple Choice

Perform the indicated operation. Simplify, if possible. $\frac { 5 } { x + 7 } + \frac { 3 } { x - 4 }$

A) $\frac { 8 x + 1 } { ( x + 7 ) ( x - 4 ) }$
B) $\frac { 8 } { ( x + 7 ) ( x - 4 ) }$
C) $\frac { 8 x ^ { 2 } + 1 } { ( x + 7 ) ( x - 4 ) }$
D) $\frac { 8 x + 7 } { ( x + 7 ) ( x - 4 ) }$