Solve the Equation in the Real Number System $$x ^ { 3 } + 5 x ^ { 2 } + 2 x - 8 = 0$$

Multiple Choice

Solve the equation in the real number system.
- $$x ^ { 3 } + 5 x ^ { 2 } + 2 x - 8 = 0$$

A) $\{ 2,4 \}$
B) $\{ - 4 , - 2,1 \}$
C) $\{ - 4 , - 2 \}$
D) $\{ - 1,2,4 \}$