Rewrite as a Single Logarithm Using the Product Rule for Logarithms

Multiple Choice

Rewrite as a single logarithm using the product rule for logarithms. Assume all variables represent positive real
numbers.
- $\log _ { 5 } x + \log _ { 5 } y$

A) $\log _ { 10 } ( \mathrm { x } + \mathrm { y } )$
B) $\log _ { 5 } ( x y )$
C) $\log _ { 5 } ( x + y )$
D) $\log _ { 10 } ( x y )$