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  1. Which of these expressions will make the rightmost set bit zero in an input integer p?
    1. p = p | (p+1)
    2. p = p | (p-1)
    3. p = p & (p+1)
    4. p = p & (p-1)
    5. None of these
Correct Option: D

p = p & (p-1)


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