pls answr it, IF U CAN...............a vry conceptual problem of capacitor

Option B is correct

Option B is correct

The correct option is (b)2C.This as , the potential energy across the third capacitor will be zero as , its ends are connected by a single wire.For the rest of the two capacitors it is clear that they are in parallel combination here , the capacitance is obtained as followsCeq=C1+C2 = C+C=2C

(option B)Third resistor get short circuit due to both ends at same potential.While other to now can be seen in parallel hence the equivalent is equal to 2C