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.
- $\log _{7} \mathrm{x}+\log _{7} \mathrm{y}$

A) $\log _{14}(\mathrm{xy})$
B) $\log _{14}(\mathrm{x}+\mathrm{y})$
C) $\log _{7}(\mathrm{x}+\mathrm{y})$
D) $\log _{7}(x y)$