Solve the Polynomial Inequality $$x ^ { 3 } + 5 x ^ { 2 } - 4 x - 20 \geq 0$$

Multiple Choice

Solve the polynomial inequality.
- $$x ^ { 3 } + 5 x ^ { 2 } - 4 x - 20 \geq 0$$

A) $[ - 2,2 ] \cup [ 5 , \infty )$
B) $[ - 5 , \infty )$
C) $[ - 5,2 ]$
D) $[ - 5 , - 2 ] \cup [ 2 , \infty )$