Use Rational Exponents to Simplify $$\sqrt [ 12 ] { 8 \mathrm { x } ^ { 3 } }$$

Multiple Choice

Use rational exponents to simplify. Assume that all variables represent positive real numbers.
- $$\sqrt [ 12 ] { 8 \mathrm { x } ^ { 3 } }$$

A) $\sqrt [ 4 ] { 2 x }$
B) $2 \sqrt [ 4 ] { 2 x }$
C) $\sqrt [ 3 ] { 2 x }$
D) $\frac { 1 } { 16 x }$