The device in which nuclear fission can be carried out through a sustained and a controlled chain reaction is called alan.
nuclear reactor
The device in which nuclear fission can be carried out through a sustained and a controlled chain reaction is called a Nuclear reactor
Generator: A generator is a device that is used to convert mechanical energy into electrical energy.
Motor: A motor is a device used for converting electrical energy into mechanical energy.
Atomic pole: poles generally help us to control the timing , balance and stability in the reaction.
correct answer is
(c) nuclear reactor