The correct answer is option C
A (BWR) boiling water reactor and a pressurized water reactor is a kind of light water reactors that is used to generate electricity.
The main difference between both the reactors is that a pressurized water reactor does not boils the water, the hot water exchanges heat to a low pressure water system which turns on the turbine to produce electric power.
The boiling water reactor boils the water and the steam produced by the water rotates the turbine to produce electricity.