Factor the Perfect Square Trinomial Completely $x ^ { 4 } + 10 x ^ { 2 } + 25$

Multiple Choice

Factor the perfect square trinomial completely.
- $x ^ { 4 } + 10 x ^ { 2 } + 25$

A) $\left( x ^ { 2 } - 5 \right) ^ { 2 }$
B) $\left( x ^ { 2 } + 5 \right) \left( x ^ { 2 } - 5 \right)$
C) $\left( x ^ { 2 } + 10 \right) \left( x ^ { 2 } - 10 \right)$
D) $\left( x ^ { 2 } + 5 \right) ^ { 2 }$