Answer:
Option C, Turbines
Explanation:
An electric motor comprise of following components-
a) Magnets
b) Electric wire or solenoid
c) Motor shaft
Turbine is a component of power producing plant that is essential to rotate the shaft of the motor. Once the shaft is rotated, the electric coil placed between the magnets is also rotated. Rotating coil cut the magnetic fields to induce emf and hence electric current is produced from mechanical work (i.e rotation).
Hence, option C is correct
