Simplify the Fraction $$\frac { 7 x - 49 } { x ^ { 2 } - 49 }$$

Multiple Choice

Simplify the fraction. $$\frac { 7 x - 49 } { x ^ { 2 } - 49 }$$
Assume that the denominator is not 0 .

A) $\frac { 1 } { x - 1 }$
B) $\frac { 7 } { x + 7 }$
C) $\frac { x } { x + 7 }$
D) $\frac { x } { x - 7 }$
E) $\frac { 7 } { x - 7 }$
F) $\frac { 1 } { x + 1 }$