Solve the Equation in the Real Number System $$3 x ^ { 3 } - 14 x ^ { 2 } + 13 x + 6 = 0$$

Multiple Choice

Solve the equation in the real number system.
- $$3 x ^ { 3 } - 14 x ^ { 2 } + 13 x + 6 = 0$$

A) $\{ - 1 , - 1 , - 2 \}$
B) $\left\{ \frac { 1 } { 3 } , 2 , - 3 \right\}$
C) $\left\{ - \frac { 1 } { 3 } , 2,3 \right\}$
D) $\{ 1 , - 1,2 \rangle$