The contrapositive of \[p\to (\tilde{\ }q\to \tilde{\ }r)\] is-

1.	The contrapositive of \[p\to (\tilde{\ }q\to \tilde{\ }r)\] is-
A.	\[(\tilde{\ }q\wedge r)\to \tilde{\ }p\]
B.	\[(q\to r)\to \tilde{\ }p\]
C.	\[(q\vee \tilde{\ }r)\to \tilde{\ }p\]
D.	None of these
Answer» B. \[(q\to r)\to \tilde{\ }p\]

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The contrapositive of \[p\to (\tilde{\ }q\to \tilde{\ }r)\] is-

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