Rewrite as a Single Logarithm Using the Product Rule for Logarithms

Multiple Choice

Rewrite as a single logarithm using the product rule for logarithms. A ssume all variables represent positive real numbers.
- $\log _{6} 9+\log _{6} 9$

A) $\log _{12} 18$
B) $\log _{6} 81$
C) $\log _{6} 18$
D) $\log _{12} 81$