Solve by Quadratic Formula $3 x ^ { 2 } - 4 x + 3 = 0$

Multiple Choice

Solve by quadratic formula: $3 x ^ { 2 } - 4 x + 3 = 0$

A) $\left\{ - \frac { 2 } { 3 } \pm \frac { \sqrt { 5 } } { 3 } \right\}$
B) none of these
C) $\left\{ \frac { 2 } { 3 } \pm \frac { \sqrt { 5 } } { 3 } i \right\}$
D) $\left\{ \frac { 2 } { 3 } \pm \frac { 2 \sqrt { 5 } } { 3 } i \right\}$