Perform the Indicated Operation $$\frac { 36 x } { 7 ( 6 x + 1 ) } - \frac { 1 } { 7 x ( 6 x + 1 ) } + \frac { 1 } { x }$$

Multiple Choice

Perform the indicated operation. Simplify, if possible.
- $$\frac { 36 x } { 7 ( 6 x + 1 ) } - \frac { 1 } { 7 x ( 6 x + 1 ) } + \frac { 1 } { x }$$

A) $\frac { 36 x ^ { 2 } + 42 x + 6 } { 7 x }$
B) $\frac { 6 ( x + 1 ) } { 7 x }$
C) $\frac { 6 ( x + 1 ) } { 42 x ^ { 2 } + 7 x }$
D) $\frac { 36 x ^ { 2 } + 42 x + 6 } { 42 x ^ { 2 } + 7 x }$