Raise the Monomial to the Indicated Power $- ( 3 a b ) ^ { 2 }$

Multiple Choice

Raise the monomial to the indicated power. $- ( 3 a b ) ^ { 2 }$

A) $- 6 a ^ { 3 } b ^ { 3 }$
B) $9 a ^ { 3 } b ^ { 3 }$
C) $- 9 a ^ { 2 } b ^ { 2 }$
D) $- 9 a ^ { 3 } b ^ { 3 }$
E) $6 a ^ { 2 } b ^ { 2 }$