23. $\lim_{x \to 0} \frac{\ln(1+3x)}{\ln(1+5x)}$ 의 값은? [2점]

\begin{itemize}
    \item[1] $\frac{1}{5}$
    \item[2] $\frac{2}{5}$
    \item[3] $\frac{3}{5}$
    \item[4] $\frac{4}{5}$
    \item[5] $1$
\end{itemize}