A 10- $\mu$ F Capacitor in an LC Circuit Made Entirely of Superconducting

Multiple Choice

A 10- $\mu$ F capacitor in an LC circuit made entirely of superconducting materials (R = 0 $\Omega$ ) is charged to 100 $\mu$ C.Then a superconducting switch is closed.At t = 0 s, plate 1 is positively charged and plate 2 is negatively charged.At a later time, Vab = +10 V.At that time, Vdc is:

A) 0 V.
B) 3.54 V.
C) 5.0 V.
D) 7.07 V.
E) 10 V.