Final answer:
The location of the anchor point in a drum brake system mainly affects brake shoe wear, as it impacts how evenly the brake shoes make contact with the drum.
Step-by-step explanation:
The location of the anchor point in a drum brake system determines d) Brake shoe wear. The anchor point serves as a pivot point for the brake shoes, which are the components that press against the drum to slow down the vehicle. If the anchor point is improperly located, it can lead to uneven brake shoe wear, as one shoe may contact the drum more forcefully or frequently than the other. Properly adjusting the anchor point is critical for even wear and effective braking performance.