What is the main function of a limited-slip differential?

The main function of a limited-slip differential is to limit the slip between the drive wheels. This technology enhances traction by allowing for differences in wheel speed during turns or on uneven surfaces, while still distributing power to both wheels effectively. In scenarios where one wheel begins to spin faster than the other—such as when driving in wet or slippery conditions—the limited-slip differential automatically engages to transfer more torque to the wheel with better traction. This results in better vehicle control, stability, and performance, especially when cornering or navigating challenging driving situations.

The other options do not accurately describe the role of a limited-slip differential. For example, providing maximum power to one wheel would undermine its function of balancing power and enhancing traction. Adjusting engine speed is not related to the differential's function, as that is typically managed by the vehicle's engine control system. Similarly, controlling steering response falls under the steering and suspension systems, rather than being a function of the differential. Thus, option B aligns perfectly with what a limited-slip differential is designed to do.