Solve the Equation $\log _ { x } \left( \frac { 2 } { 5 } \right) = 1$

Multiple Choice

Solve the equation.
- $\log _ { x } \left( \frac { 2 } { 5 } \right) = 1$

A) $\left\{ \frac { 2 } { 5 } \right\}$
B) 2
C) $\left\{ \frac { 5 } { 2 } \right\}$
D) 1