Change the Logarithmic Expression to an Equivalent Expression Involving an Exponent

Multiple Choice

Change the logarithmic expression to an equivalent expression involving an exponent.
- $$\log _ { b } 49 = \frac { 2 } { 3 }$$

A) $b ^ { 3 / 2 } = 49$
B) $\left( \frac { 2 } { 3 } \right) ^ { b } = 49$
C) $49 ^ { 2 / 3 } = b$
D) $b ^ { 2 / 3 } = 49$