Factor the Binomial Completely $32 a ^ { 4 } b - 18 b ^ { 3 }$

Multiple Choice

Factor the binomial completely.
- $32 a ^ { 4 } b - 18 b ^ { 3 }$

A) $2 b ( 4 a + 3 b ) ^ { 2 }$
B) $2 b ( 4 a - 3 b ) ^ { 2 }$
C) $2 b \left( 4 a ^ { 2 } + 3 b \right) \left( 4 a ^ { 2 } - 3 b \right)$
D) $( 8 a + 6 b ) \left( 4 a b - 3 b ^ { 2 } \right)$