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Multiple ChoiceIntermediate 30s

volatile

The volatile qualifier tells the compiler that a variable:
Options
  1. 1Is thread-safe and safe to share across concurrent threads
  2. 2Is stored in ROM and therefore cannot ever be written at all
  3. 3Is const and therefore cannot be modified by any code path
  4. 4May change outside program control; do not optimize its accesses away

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