What function does the drive shaft perform in a vehicle?

The drive shaft plays a crucial role in a vehicle’s drivetrain by transmitting power from the engine to the wheels. This component is typically a long, cylindrical shaft that connects the transmission to the differential, ensuring that the rotational energy generated by the engine is effectively delivered to the wheels to propel the vehicle.

This function is essential for the vehicle's movement, as it allows for the transfer of power needed to overcome resistance from road surfaces and other conditions. Without a functioning drive shaft, the vehicle would be unable to move, emphasizing its importance in the overall operation of the automobile.

In contrast, the other options describe functions that are not related to the drive shaft. For instance, controlling wheel alignment pertains to suspension and steering components rather than the drive shaft. Similarly, filtering fuel relates to the fuel system and its components, and supporting the transmission, while somewhat related, is not a primary function of the drive shaft itself; the transmission is typically mounted to the vehicle’s chassis or a subframe, with the drive shaft serving as a connection point rather than a supporting element. Hence, the drive shaft's primary and defining role is the transmission of power from the engine to the wheels.