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The brake-shoe lining not contacting the brake drum is an example of:

  1. Normal wear and tear

  2. A foundation brake component defect

  3. An ABS system feature

  4. None of the above

The correct answer is: A foundation brake component defect

This is because a defect in the foundation brake component, specifically the brake-shoe lining, can prevent it from properly contacting the brake drum. This can lead to reduced braking performance and potentially cause safety hazards. The other options are incorrect because normal wear and tear would not prevent the brake-shoe lining from contacting the brake drum and an ABS system feature is unrelated to the physical contact between these components. Therefore, the most appropriate option is B.