An electric motor converts electrical energy into:

Correct option is D

Correct option : (d),   mechanical energy

An electric motor converts electrical energy into mechanical energy.

Information Booster : 

• ​More specifically, it transforms the electrical energy supplied to it (usually in the form of alternating current or direct current) into mechanical energy, which is typically used to perform work, such as rotating a fan, moving a conveyor belt, or driving a pump.
  
• The mechanical energy generated by the motor comes in the form of rotational motion (torque and angular velocity).