Simplify the Expression $$\left( - 3 z ^ { 2 } - 4 z + 7 \right) + \left( 2 z ^ { 2 } + 2 z - 1 \right) - \left( 4 z ^ { 2 } - 20 z + 9 \right)$$

Multiple Choice

Simplify the expression. $$\left( - 3 z ^ { 2 } - 4 z + 7 \right) + \left( 2 z ^ { 2 } + 2 z - 1 \right) - \left( 4 z ^ { 2 } - 20 z + 9 \right)$$

A) $- 5 z ^ { 2 } + 18 z - 3$
B) $9 z ^ { 2 } + 26 z - 3$
C) $- 5 z ^ { 2 } + 18 z - 17$
D) $- 5 z ^ { 2 } + 26 z - 17$
E) none of these