Factor Completely $$x ^ { 2 } - 4$$ A) $( x + 4 ) ( x - 4 )$

Multiple Choice

Factor completely. If the polynomial cannot be factored, write ʺprime.ʺ
- $$x ^ { 2 } - 4$$

A) $( x + 4 ) ( x - 4 )$
B) $( x + 2 ) ( x - 2 )$
C) $( x - 2 ) ^ { 2 }$
D) $\left( x ^ { 2 } + 2 \right) \left( x ^ { 2 } - 2 \right)$