Which of the following logarithmic is equivalent to the logarithmic expression

Given,
The expression is,
[tex]\log (r)+\log (v)[/tex]By the properties of the logarithmic,
[tex]\begin{gathered} \log (a)+\log (b)=\log (ab) \\ \log (a)-\log (b)=\log (\frac{a}{b}) \\ \log a^b=b\text{ log a} \end{gathered}[/tex]So, according to the properties, the given expression becomes,
[tex]\log (r)+\log (v)=\log (rv)[/tex]Hence, the solution is log (rv).