Solve the Equation $$3 ^ { ( 3 x - 6 ) } = 27$$

Multiple Choice

Solve the equation.
- $$3 ^ { ( 3 x - 6 ) } = 27$$

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