The correct answer is A. Parallel.
A capacitor is a device that stores electrical energy in an electric field. When a capacitor is connected in parallel to an inductive circuit, it creates a current that flows in the opposite direction to the current in the inductor. This current helps to cancel out the inductive reactance, which improves the power factor of the circuit.
The power factor of a circuit is a measure of how efficiently the circuit uses electrical energy. A power factor of 1 indicates that the circuit is using all of the electrical energy that is being supplied to it. A power factor of less than 1 indicates that the circuit is not using all of the electrical energy that is being supplied to it. This is because some of the electrical energy is being used to create a magnetic field in the inductor.
By connecting a capacitor in parallel to an inductive circuit, the power factor of the circuit can be improved. This is because the capacitor creates a current that flows in the opposite direction to the current in the inductor. This current helps to cancel out the inductive reactance, which improves the power factor of the circuit.
The answer to the question is A. Parallel.