The __ system was designed to prevent wheels from locking up under braking conditions and shorten most panic stop distances. Select one: a. 4WD b. ESC c. ABS d. TCS

## Step 1<br />The problem is asking us to identify the system that was designed to prevent wheels from locking up under braking conditions and shorten most panic stop distances. The options provided are 4WD (Four-Wheel Drive), ESC (Electronic Stability Control), ABS (Anti-lock Braking System), and TCS (Traction Control System).<br /><br />## Step 2<br />The Anti-lock Braking System (ABS) is the system that fits the description given in the problem. It prevents the wheels from locking up during braking, which can lead to a loss of control. By preventing the wheels from locking up, ABS allows the driver to maintain steering control during an emergency stop, thereby reducing the stopping distance.<br /><br />## Step 3<br />The other options, 4WD, ESC, and TCS, have different functions. 4WD is a system that provides power to all four wheels of a vehicle, ESC is a system that helps a vehicle stay on course by automatically applying the brakes to individual wheels, and TCS is a system that helps a vehicle's wheels maintain traction on the road surface.