A circuit contains an ideal battery supplying potential difference \(V_0\) connected to four capacitors. Capacitor \(C_1\) of capacitance \(2C\) is connected in series with a parallel combination of capacitor \(C_2\) of capacitance \(C\) and capacitor \(C_3\) of capacitance \(C\). This entire upper combination is in parallel with a fourth capacitor \(C_4\) of capacitance \(C\) directly across the battery terminals.

Which of the following correctly pairs the potential difference \(V_1\) across capacitor \(C_1\) and the ratio \(U_2 / U_{\text{total}}\), where \(U_2\) is the electric energy stored in capacitor \(C_2\) and \(U_{\text{total}}\) is the total energy stored in all four capacitors?

Choice	Potential Difference \(V_1\)	Energy Ratio \(U_2 / U_{\text{total}}\)
(A)	\(\dfrac{1}{2} V_0\)	\(\dfrac{1}{8}\)
(B)	\(\dfrac{1}{2} V_0\)	\(\dfrac{1}{4}\)
(C)	\(\dfrac{2}{3} V_0\)	\(\dfrac{1}{8}\)
(D)	\(\dfrac{2}{3} V_0\)	\(\dfrac{1}{6}\)