The correct answer is: C. either (A) or (B)
A split-phase motor is an AC induction motor that has two windings: a main winding and a starting winding. The main winding is connected directly to the power supply, while the starting winding is connected to the power supply through a capacitor. When the motor is turned on, the starting winding creates a magnetic field that is out of phase with the magnetic field of the main winding. This causes the motor to start rotating. Once the motor is up to speed, the starting winding is disconnected from the power supply and the motor continues to rotate using the magnetic field of the main winding.
The direction of rotation of a split-phase motor can be reversed by reversing the connection of either the starting winding or the main winding. If the starting winding is reversed, the magnetic field of the starting winding will be in phase with the magnetic field of the main winding. This will cause the motor to rotate in the opposite direction. If the main winding is reversed, the magnetic field of the main winding will be out of phase with the magnetic field of the starting winding. This will also cause the motor to rotate in the opposite direction.
In conclusion, the direction of rotation of a split-phase motor can be reversed by reversing the connection of either the starting winding or the main winding.