How does a tie rod end function in a vehicle?

The function of a tie rod end is to connect the steering gear to the wheels, making option B the correct choice. The tie rod end is a crucial component of the steering system, allowing for the transfer of movement from the steering gear to the wheels. When the driver turns the steering wheel, the steering gear sends that motion through the tie rod ends, which then pivot the wheels accordingly. This connection ensures that the vehicle can efficiently change direction based on the driver's input.

Other options do not accurately describe the role of the tie rod end. For instance, connecting the steering wheel to the axle would imply a direct link that does not account for the steering mechanism involved. Transferring power from the engine to the wheels refers to the drivetrain components, which include parts such as the transmission and driveshaft rather than the steering system. Providing friction to the braking system pertains to brake components like pads and rotors, which are unrelated to the operation of tie rod ends in steering. Thus, recognizing the tie rod end's specific role in the steering system is essential for understanding vehicle dynamics.