Simplify the Radical Expression $\frac { \sqrt [ 4 ] { 486 x ^ { 17 } } } { \sqrt [ 4 ] { 6 x } }$

Multiple Choice

Simplify the radical expression. Assume that all variables represent positive real numbers.
- $\frac { \sqrt [ 4 ] { 486 x ^ { 17 } } } { \sqrt [ 4 ] { 6 x } }$

A) $3 x ^ { 4 }$
B) $3 x ^ { 4 } \sqrt [ 4 ] { x }$
C) $x ^ { 4 } \sqrt [ 4 ] { 3 }$
D) $x ^ { 4 } \sqrt [ 4 ] { 6 }$