Find the Least Common Denominator (LCD) $\frac { 7 } { x ^ { 2 } + 10 x + 24 } , \frac { 4 } { x ^ { 2 } + 7 x + 12 }$

Multiple Choice

Find the least common denominator (LCD) .
- $\frac { 7 } { x ^ { 2 } + 10 x + 24 } , \frac { 4 } { x ^ { 2 } + 7 x + 12 }$

A) $( x - 6 ) ( x - 4 ) ( x + 3 )$
B) $( x + 4 ) ( x + 3 )$
C) $( x + 6 ) ( x + 4 )$
D) $( x + 6 ) ( x + 4 ) ( x + 3 )$