The false statement in the following is
- A$p \wedge (\sim p)$ is a contradiction
- B$(p$ $\Rightarrow q) \Leftrightarrow (\sim q$ $\Rightarrow \;\sim p)$ is a contradiction
- C$\sim (\sim p) \Leftrightarrow p$ is a tautology
- D$p \vee (\sim p)$ is a tautology
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