When inspecting a mechanical drum brake assembly, how do you verify if the brake shoes have worn past their service limit without disassembling the wheel?

1. Fully apply the brake pedal or lever and check if the pointer index mark on the brake arm aligns with the wear indicator mark on the brake panel.
2. Measure the thickness of the brake drum exterior using a vernier caliper.
3. Count the number of clicks the brake cable adjuster makes when turned clockwise.
4. Check if the brake pedal sits higher than the footpeg when at rest.