Find the Least Common Denominator of the Rational Expressions $\frac { 7 } { 4 x ^ { 2 } - 8 x + 4 }$

Multiple Choice

Find the least common denominator of the rational expressions.
- $\frac { 7 } { 4 x ^ { 2 } - 8 x + 4 }$ and $\frac { 1 } { 8 x ^ { 2 } - 8 }$

A) $32 ( x - 1 ) ^ { 2 } ( x + 1 )$
B) $4 ( x - 1 ) ^ { 2 } ( x + 1 )$
C) $8 ( x - 1 ) ^ { 2 } ( x + 1 )$
D) $8 ( x - 1 ) ( x + 1 )$