Solve for X $$\log _ { x } \frac { 1 } { 3 } = \frac { 1 } { 2 }$$

Multiple Choice

Solve for x.
- $$\log _ { x } \frac { 1 } { 3 } = \frac { 1 } { 2 }$$

A) $\{ 9 \}$
B) $\left\{ \frac { 1 } { 9 } \right\}$
C) $\left\{ \frac { 2 } { 3 } \right\}$
D) $\{ 2 \}$