Solve the Equation $$e ^ { 4 x } = 7$$

Multiple Choice

Solve the equation. Give an exact solution.
- $$e ^ { 4 x } = 7$$

A) $\left\{ \frac { \ln 4 } { 7 } \right\}$
B) $\left\{ \frac { \ln 7 } { 4 } \right\}$
C) $\{ 4 \ln 7 \}$
D) $\left\{ \frac { 7 } { 4 } \mathrm { e } \right\}$