Which of the following statement is a contradiction?

1.	Which of the following statement is a contradiction?
A.	\[(\tilde{\ }p\vee \tilde{\ }q)\vee (p\vee \tilde{\ }q)\]
B.	\[(p\to q)\vee (p\wedge \tilde{\ }q)\]
C.	\[(\tilde{\ }p\wedge q)\wedge (\tilde{\ }q)\]
D.	\[(\tilde{\ }p\wedge q)\vee (\tilde{\ }q)\]
Answer» D. \[(\tilde{\ }p\wedge q)\vee (\tilde{\ }q)\]

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Which of the following statement is a contradiction?

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