Final answer:
The correct option is a) Brake balance. Brake imbalance occurs when some wheel ends or axles work harder to brake than others, leading to uneven braking performance.
Step-by-step explanation:
When some wheel ends or axles work harder to brake than others, it is called brake imbalance. Brake imbalance occurs when the braking force is not distributed evenly among all the wheels or axles of a vehicle. This can lead to uneven braking performance, with some wheels or axles slowing down more quickly than others.
Brake imbalance can be caused by various factors, such as uneven wear of brake pads or shoes, malfunctioning brake calipers, or unequal brake fluid pressure.It can be caused by factors such as uneven wear of brake pads or shoes, malfunctioning brake calipers, or unequal brake fluid pressure.
For example, if the front left wheel of a car brakes harder than the other wheels, the car may pull to the left when braking, which is known as brake pull.