\textbf{123-} If $G(x) = x^2 \int_{2}^{\sqrt{x}} \dfrac{\ln(t+2)}{t^2}\, dt$, and $G'(4)$ equals how many times $\ln 2$? \begin{itemize} \item[(1)] $1$ \item[(2)] $2$ \item[(3)] $1.5$ \item[(4)] $3$ \end{itemize}