The correct answer is: A. high resistance and low inductance.
The running winding of a split phase motor is the winding that is responsible for keeping the motor running once it has been started. It is connected to the power supply through a capacitor, which creates a phase difference between the current in the running winding and the current in the starting winding. This phase difference causes a torque that keeps the motor running.
The running winding must have a high resistance so that it draws a small current. This small current produces a small magnetic field that does not interfere with the magnetic field produced by the starting winding. The running winding must also have a low inductance so that it can easily change its current when the phase difference between the two windings changes.
Option B is incorrect because the running winding must have a low inductance. Option C is incorrect because the running winding must have a high resistance. Option D is incorrect because the running winding must have a low inductance.