Simplify the Expression as Completely as Possible $$\left( - 4 x ^ { 3 } \right) ( 2 x ) ^ { 2 }$$

Multiple Choice

Simplify the expression as completely as possible. $$\left( - 4 x ^ { 3 } \right) ( 2 x ) ^ { 2 }$$

A) $256 x ^ { 5 }$
B) $- 8 x ^ { 5 }$
C) $- 8 x ^ { 6 }$
D) $- 16 x ^ { 5 }$
E) $16 x ^ { 5 }$