Simplify the Expression by Using the Properties of Rational Exponents $$\left( x ^ { 4 } y ^ { 8 } \right) ^ { 2 / 3 }$$

Multiple Choice

Simplify the expression by using the properties of rational exponents. Write the final answer using positive exponents only. $$\left( x ^ { 4 } y ^ { 8 } \right) ^ { 2 / 3 }$$

A) $x ^ { 4 } y ^ { 16 / 3 }$
B) $x ^ { 8 / 3 } y ^ { 16 / 3 }$
C) $x ^ { 14 / 3 } y ^ { 26 / 3 }$
D) $\frac { 2 } { 3 } x ^ { 4 } y ^ { 8 }$