Perform the Operation and Simplify $- 3 a ^ { 2 } ( a + 1 ) + 7 a \left( a ^ { 2 } - 4 \right) - a ^ { 2 } ( a + 9 )$

Multiple Choice

Perform the operation and simplify. $- 3 a ^ { 2 } ( a + 1 ) + 7 a \left( a ^ { 2 } - 4 \right) - a ^ { 2 } ( a + 9 )$

A) $\quad 3 a ^ { 2 } + 12 a ^ { 4 } - 28$
B) $\quad 3 a ^ { 3 } - 12 a ^ { 2 } - 28$
C) 0
D) $\quad 3 a ^ { 3 } - 12 a ^ { 2 } - 28 a$