Perform the Indicated Operations and Simplify the Result $$\frac { \frac { 3 } { x } + \frac { 7 } { x ^ { 2 } } } { \frac { 9 } { x ^ { 2 } } - \frac { 49 } { x } }$$

Multiple Choice

Perform the indicated operations and simplify the result. Leave the answer in factored form.
- $$\frac { \frac { 3 } { x } + \frac { 7 } { x ^ { 2 } } } { \frac { 9 } { x ^ { 2 } } - \frac { 49 } { x } }$$

A) $\frac { 1 } { 3 x - 7 }$
B) $\frac { 3 x ^ { 2 } + 7 } { 9 - 49 x }$
C) $\frac { 1 } { 3 - 7 x }$
D) $\frac { 3 x + 7 } { 9 - 49 x }$