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A program should act when a computer is switched off. The operator to use is:
Ain
Bnot
Cand
Dor
Answer & Solution
Correct answer: B. not
1. The test must flip a true into a false.
2. One operator takes a single operand and reverses it.
3. That operator is not.
_Source: OpenStax Introduction to Python Programming, Chapter 4._
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