\textbf{185.} In the circuit below, the potential at point \textbf{A} is how many volts?
\textit{[Figure: Circuit with two batteries: $\varepsilon_1 = 18\,\text{V}$, $r_1 = 0.5\,\Omega$; $\varepsilon_2 = 12\,\text{V}$, $r_2 = 1.5\,\Omega$; external resistors $2\,\Omega$, $8\,\Omega$; $V_E = 0$]}
\begin{itemize}
\item[(1)] $-22.75$
\item[(2)] $-13.75$
\item[(3)] $13.75$
\item[(4)] $22.75$
\end{itemize}