Which one of the following is a tautology ?
Which one of the following is a tautology ?
- [JEE MAIN 2020]
- A
$\mathrm{P} \wedge(\mathrm{P} \vee \mathrm{Q})$
- B
$\mathrm{P} \vee(\mathrm{P} \wedge \mathrm{Q})$
- C
$\mathrm{Q} \rightarrow(\mathrm{P} \wedge(\mathrm{P} \rightarrow \mathrm{Q}))$
- D
$(\mathrm{P} \wedge(\mathrm{P} \rightarrow \mathrm{Q})) \rightarrow \mathrm{Q}$
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