Which one of the following statements

$(\mathrm{p} \wedge \mathrm{q}) \rightarrow \mathrm{p}$

$(p \wedge q) \rightarrow(\sim p) \vee q$

$\mathrm{p} \rightarrow(\mathrm{p} \vee \mathrm{q})$

$(p \vee q) \rightarrow(p \vee(\sim q))$