Which of the following expressions is equivalent to (A⊕B)⊕C

2005

1. A.

   (A+B+C)(A¯+B¯+C¯)

2. B.

   (A+B+C)(A¯+B¯+C)

3. C.

   ABC+A¯(B⊕C)+B¯(A⊕C)

4. D.

   None

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Correct answer: C

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