Factor by Grouping $$x ^ { 4 } - x ^ { 3 } + 4 x - 4$$

Multiple Choice

Factor by grouping.
- $$x ^ { 4 } - x ^ { 3 } + 4 x - 4$$

A) $\left( x ^ { 3 } + 4 \right) ( 4 x - 1 )$
B) $\left( x ^ { 3 } + 4 \right) ( x - 1 )$
C) $\left( x ^ { 3 } - 1 \right) ( x + 4 )$
D) $\left( x ^ { 3 } - 4 \right) ( x - 1 )$