A synchronous motor can be made self starting by providing

Answer: Option A

To make a synchronous motor self-starting, a damper winding on the rotor poles is provided.
The damper winding consists of bars embedded in the rotor poles and short-circuited at both ends. When the motor is started, the relative motion between the rotating magnetic field of the stator and the rotor induces currents in the damper winding. These currents produce a magnetic field that interacts with the stator's magnetic field, generating torque and assisting in the motor's starting process.
Hence, option A is the correct choice.