Change the Exponential Expression to an Equivalent Expression Involving a Logarithm

Multiple Choice

Change the exponential expression to an equivalent expression involving a logarithm.
- $$3 ^ { - 2 } = \frac { 1 } { 9 }$$

A) $\log _ { - 2 } \frac { 1 } { 9 } = 3$
B) $\log _ { 1 / 9 } 3 = - 2$
C) $\log _ { 3 } \frac { 1 } { 9 } = - 2$
D) $\log _ { 3 } - 2 = \frac { 1 } { 9 }$