Simplify the Algebraic Expression $$\left( 8 z ^ { 4 } + 5 z + 7 \right) - \left( 6 z ^ { 4 } - 2 z + 3 \right)$$

Multiple Choice

Simplify the algebraic expression. $$\left( 8 z ^ { 4 } + 5 z + 7 \right) - \left( 6 z ^ { 4 } - 2 z + 3 \right)$$

A) $2 z ^ { 4 } + 7 z + 4$
B) $- 2 z ^ { 4 } + 7 z - 4$
C) $14 z ^ { 4 } + 3 z + 4$
D) $- 2 z ^ { 4 } - 7 z - 4$
E) $2 z ^ { 4 } - 7 z + 4$