The correct answer is: B. High power factor.
A low value of kVAR compared with kW indicates a high power factor. Power factor is a measure of how efficiently an AC circuit is using electrical energy. A power factor of 1 indicates that all of the electrical energy is being used for useful work, while a power factor of less than 1 indicates that some of the electrical energy is being wasted as heat.
A low power factor can cause a number of problems, including increased energy costs, decreased equipment efficiency, and increased system voltage drop. To improve power factor, capacitors can be added to the circuit. Capacitors store energy in an electric field, and when they are discharged, they provide a current that helps to offset the inductive current caused by motors and other loads. This helps to improve the power factor and reduce energy costs.
Option A is incorrect because a low value of kVAR compared with kW indicates a high power factor, not a low efficiency.
Option C is incorrect because a low value of kVAR compared with kW indicates a high power factor, not unity power factor.
Option D is incorrect because a low value of kVAR compared with kW indicates a high power factor, not maximum load current.