Find the Least Common Denominator (LCD) $\frac { 9 } { 6 x + 48 } , \frac { 8 } { x ^ { 2 } + 8 x }$

Multiple Choice

Find the least common denominator (LCD) .
- $\frac { 9 } { 6 x + 48 } , \frac { 8 } { x ^ { 2 } + 8 x }$

A) $6 x ^ { 2 } + 48$
B) $6 x + 8$
C) $6 x ^ { 2 } + 8$
D) $6 x ( x + 8 )$