Which one of the following Boolean expressions is a tautology? [JEE...

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Which one of the following Boolean expressions is a tautology?
[JEE Main - 2019(April)]
\( \mathrm{P} \)
(1) \( (\mathrm{p} \vee \mathrm{q}) \wedge(\sim \mathrm{p} \vee \sim \mathrm{q}) \quad(2)(\mathrm{p} \wedge \mathrm{q}) \vee(\mathrm{p} \vee \sim \mathrm{q}) \)
W.
(3) \( (p \vee q) \wedge(p \vee \sim q) \)
(4) \( (\mathrm{P} \vee \mathrm{q}) \vee(\mathrm{p} \vee \sim \mathrm{q}) \)
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