Joanna is not convinced that taking ESD precautions makes any difference in repair quality. She states, "If Apple was really serious about ESD precautions, they would not instruct customers to…

Question

Options

• ACustomers can complete these part replacements more quickly, reducing the chance of ESD
• BCustomers are more likely to understand ESD precautions than technicians are.
• CCustomers replace far fewer parts than service technicians.
• DCustomers are more careful because it is their own device.

• A
  4% (1)
• B
  4% (1)
• C
  80% (20)
• D
  12% (3)

Explanation

Option C is correct because ESD precautions are calibrated to risk exposure frequency - service technicians handle dozens of components daily, making full precautions (wrist straps, ESD mats) essential to manage cumulative risk, whereas a customer replacing a single battery or SSD once has a statistically negligible ESD risk where a basic grounding touch is proportionate. Apple's tiered approach reflects risk management, not indifference to ESD.

Why the distractors fail:

• A is wrong because speed has no bearing on ESD risk - static discharge is instantaneous and unrelated to how quickly you work.
• B is backwards - trained technicians have more ESD knowledge than typical customers, not less.
• D is wrong because care and attentiveness don't protect against ESD; static electricity is invisible and builds up regardless of how carefully you handle a component.

Memory tip: Think "volume = vulnerability." High-volume handlers (technicians) need high-level protection; low-volume handlers (customers, doing it once) need only basic grounding. The precaution scales with the number of parts touched, not the person's carefulness.

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