Factor as Completely as Possible $8 m ^ { 6 } - 28 m ^ { 4 } + 40 m ^ { 2 }$

Multiple Choice

Factor as completely as possible. If unfactorable, indicate that the polynomial is prime.
- $8 m ^ { 6 } - 28 m ^ { 4 } + 40 m ^ { 2 }$

A) $4 \left( 2 m ^ { 6 } - 7 m ^ { 4 } + 10 m ^ { 2 } \right)$
B) $4 m ^ { 2 } \left( 2 m ^ { 4 } - 7 m ^ { 2 } + 10 \right)$
C) $m ^ { 2 } \left( 8 m ^ { 4 } - 28 m ^ { 2 } + 40 \right)$
D) Prime