Find the Least Common Denominator $\frac { 2 } { 9 x ^ { 4 } } + \frac { 8 } { 27 x ^ { 2 } }$

Multiple Choice

Find the least common denominator.
- $\frac { 2 } { 9 x ^ { 4 } } + \frac { 8 } { 27 x ^ { 2 } }$

A) $27 x ^ { 6 }$
B) $243 x ^ { 6 }$
C) $27 x ^ { 4 }$
D) $243 x ^ { 4 }$