What does "power steering" assist the driver with?

Power steering is a system that significantly reduces the effort required by the driver to turn the steering wheel. It assists with steering by using hydraulic or electrical mechanisms to amplify the force that the driver applies to the steering wheel, making it easier to maneuver the vehicle, especially at low speeds or when parking. This enhancement of steering control allows for smoother and more precise handling, improving the overall driving experience.

Unlike braking, which involves slowing down or stopping the vehicle, or adjusting the suspension, which alters ride height and handling characteristics, power steering specifically targets steering effort. Increasing engine power is not related to steering but rather to the performance output of the vehicle's engine. Thus, the role of power steering is centered entirely around assisting the driver in steering, making option B the clear choice.