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The negation of the statement (p  q)  (q  (~ r) is

1. (p  r)  (~ q)
2. ((~ p)  r))  (~ q)
3. ((~ p)  (~ q))  (~ r)
4. ((~ p)  (~ q))  (~ r)

Correct answer: ((~ p)  r))  (~ q)

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