A condenser of capacity `6 µF` is fully charged using a 6-volt battery. The battery is removed and a resistanceless 0.2 mH inductor is connected across the condenser. The current which is flowing through the inductor when one-third of the total energy is in the magnetic field of the inductor is :-
Options:
(a) 0.1 A
(b) 0.2 A
(c) 0.4 A
(d) 0.6 A