Factor by Any Method $15 x ^ { 4 } + 22 x ^ { 2 } + 8$

Multiple Choice

Factor by any method.
- $15 x ^ { 4 } + 22 x ^ { 2 } + 8$

A) $\left( 5 x ^ { 2 } - 4 \right) \left( 3 x ^ { 2 } - 2 \right)$
B) $\left( 3 x ^ { 2 } + 1 \right) \left( 5 x ^ { 2 } + 8 \right)$
C) $\left( 15 x ^ { 2 } + 2 \right) \left( x ^ { 2 } + 4 \right)$
D) $\left( 3 x ^ { 2 } + 2 \right) \left( 5 x ^ { 2 } + 4 \right)$