\textbf{32.} In the figure below, if $\widehat{DAC} = 3\widehat{BAD}$, what is the length of side $AC$?
\textit{[Figure: Triangle with vertices $A$, $B$, $C$, point $D$ on $BC$ with $BD = 4$, $AB = 8$, $AD = 6$]}
\begin{itemize}
\item[(1)] $19/2$
\item[(2)] $16/8$
\item[(3)] $18/6$
\item[(4)] $15/4$
\end{itemize}