Using De Morgan's Law, what is ¬(P∧Q)\neg(P \land Q)¬(P∧Q) equivalent to?
¬P∧¬Q\neg P \land \neg Q¬P∧¬Q
¬P∨¬Q\neg P \lor \neg Q¬P∨¬Q
P∨QP \lor QP∨Q
P∧QP \land QP∧Q