Rewrite the Expression with a Rational Exponent $\sqrt [ 4 ] { 8 }$

Multiple Choice

Rewrite the expression with a rational exponent.
- $\sqrt [ 4 ] { 8 }$

A) $8 ^ { 4 }$
B) $\frac { 1 } { 8 ^ { 4 } }$
C) $\frac { 1 } { 4 } \cdot 8$
D) $8 ^ { 1 / 4 }$