While starting a salient pole synchronous motor by induction motor action and connecting field discharge resistance across field, starting and accelerating torque is produced by_____________?

• A. induction motor torque in field winding
• B. induction motor torque in damper winding
• C. eddy current and hysteresis torque in pole faces
• D. reHetance motor torque due to saliency of the rotor
• E. all of the above methods