Final answer:
The correct answer is option A) Blower motor. It is responsible for keeping the high-voltage batteries from overheating in a hybrid vehicle by moving air across the batteries to dissipate heat.
Step-by-step explanation:
In hybrid vehicles, the high-voltage batteries generate heat during operation, just as any other electrical component would. To prevent overheating and ensure the batteries operate within a safe temperature range, a cooling system is employed. The blower motor is a key component of this system. It works by forcing air over the batteries to dissipate heat, functioning similarly to a fan cooling a computer's internal components.
Unlike conventional internal combustion engine (ICE) vehicles where the radiator fan and the exhaust system play a central role in cooling the engine, the blower motor is specifically designed to maintain the temperature of the batteries in a hybrid vehicle. The turbo, typically associated with forced induction in ICE vehicles, is not concerned with battery temperature management.