Write the Logarithmic Equation in Exponential Form $\log _ { 7 } \frac { 1 } { 49 } = - 2$

Multiple Choice

Write the logarithmic equation in exponential form.​ $\log _ { 7 } \frac { 1 } { 49 } = - 2$ ​

A) $7 ^ { - 2 } = - \frac { 1 } { 49 }$
B) $7 ^ { - 2 } = \frac { 1 } { 49 }$
C) $7 ^ { - 2 } = - 49$
D) $7 ^ { - 2 } = 49$
E) $49 ^ { - 2 } = \frac { 1 } { 7 }$