Solve the Equation by Changing It to Exponential Form $$\log _ { 7 } x = 2$$

Solve the equation by changing it to exponential form.
- $$\log _ { 7 } x = 2$$

A) $x = 2 ^ { 7 }$
B) $x = 7 \cdot 2$
C) $x = 7 ^ { 2 }$
D) $x = \frac { 2 } { \log _ { 7 } 2 }$