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.
- $\log _{5} 7+\log _{5} 11$

A) $\log _{10} 18$
B) $\log _{5} 18$
C) $\log _{10} 77$
D) $\log _{5} 77$