Which system enhances driving stability in slippery conditions?

The correct answer focuses on traction control, a system specifically designed to enhance driving stability in slippery conditions. Traction control helps to prevent wheel spin by adjusting the throttle and applying brakes to individual wheels when it detects a loss of traction. This is particularly beneficial on icy or wet surfaces, where maintaining grip is crucial for safe driving. By managing the power delivered to the wheels, traction control improves overall vehicle stability and control, allowing drivers to navigate difficult conditions more safely.

Other systems mentioned, such as ABS (Anti-lock Braking System), primarily prevent wheel lock-up during braking, enhancing safety during sudden stops rather than directly improving traction while accelerating or cornering. Power steering makes the vehicle easier to steer but does not specifically address stability in slippery conditions. Manual transmission provides a driver with control over gear selection but lacks the automatic responsiveness and corrections offered by traction control systems. Thus, traction control stands out as the most critical system for enhancing driving stability when road conditions are less than ideal.