Factor $24 a ^ { 2 } - 24 b ^ { 2 }$

Multiple Choice

Factor. $24 a ^ { 2 } - 24 b ^ { 2 }$

A) $24 \left( a ^ { 2 } - b ^ { 2 } \right)$
B) $24 a b ( a - b )$
C) $24 a \left( a - b ^ { 2 } \right)$
D) $24 b \left( a ^ { 2 } - b \right)$
E) $24 a b \left( a ^ { 2 } - b \right)$