Find the LCD $$\frac { 4 } { x ^ { 2 } + 6 x } , \frac { 9 } { x ^ { 2 } + 3 x - 18 }$$

Multiple Choice

Find the LCD. Do not combine fractions.
- $$\frac { 4 } { x ^ { 2 } + 6 x } , \frac { 9 } { x ^ { 2 } + 3 x - 18 }$$

A) $x ( x + 9 ) ^ { 2 }$
B) $x ( x + 6 ) ( x - 3 )$
C) $x ( x + 9 ) ( x - 3 )$
D) $( x + 9 ) ^ { 2 }$