Which condition could lead to a vehicle swerving when braking?

A vehicle swerving when braking can be significantly influenced by the condition where the left brake lining is wet. When brake linings are wet, they may not engage uniformly or effectively. The wet lining on one side can result in reduced friction on that wheel compared to the other, leading to an imbalance in braking force. This disparity can cause the vehicle to pivot around its center of mass and swerve towards the side with the less effective braking force, in this case, to the left.

In contrast, overinflated tires would generally affect the contact patch and handling characteristics of the vehicle but would not directly lead to swerving during braking in the same way. Uneven weight distribution can lead to other stability issues, but it is the direct impact of the wet brake lining causing inconsistent braking that is more likely to result in swerving. High tread depth typically contributes to better traction and braking performance, making it less likely to be a factor in vehicle swerving during braking.