Factor Out the Largest Possible Common Factor $$8 a ^ { 3 } + 6 a ^ { 2 } b - 20 a b ^ { 2 } - 15 b ^ { 3 }$$

Multiple Choice

Factor out the largest possible common factor.
- $$8 a ^ { 3 } + 6 a ^ { 2 } b - 20 a b ^ { 2 } - 15 b ^ { 3 }$$

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